Historical Friendships That Went Sour And Changed The Course Of Humanity

Just like us ordinary Joes, major historical figures have had people whom they count as close friends, too. Mates, best buds, close acquaintances: whatever you want to call them. Our past is littered with tales of close friendships that turned sour — and sometimes ended in tragedy. These particular 20 friendships of famous figures ranging from Julius Caesar to Thomas Jefferson dissolved in ugly fashion, and in ways that helped to change the course of global history.

1. Julius Caesar and Marcus Junius Brutus

Julius Caesar is as famous for his shocking downfall as he is for his iron-fisted rule of the Roman Empire. Caesar announced himself as dictator for the life of the Roman Empire back in 44 B.C. in a move that would shatter a close friendship.

That friendship was with a Roman statesman named Marcus Junius Brutus, often mononymously referred to today as Brutus. Caesar was a longtime protector of Brutus, and initially the latter felt a strong loyalty to his friend and leader.

Senate ambush

But ultimately Brutus decided his loyalty should lay with the Roman Republic, rather than his close confidant and protector, Caesar. He helped lead a plot to kill the increasingly tyrannical Caesar with the hope of saving the Republic. The scheme would have huge repercussions both for him and the empire.

Brutus and co-conspirator Gaius Cassius Longinus put their plan into action, and along with the co-conspirators, Brutus plunged a dagger into his former friend on the Senate floor. Historical debate rages over the deposed dictator’s final words, but the consequences were the martyrdom of Caesar and a cycle of civil wars that led to the downfall of the Roman Republic, along with the eventual rise to power of his grandnephew Gaius Octavius — a.k.a. Augustus Caesar — as the new ruler of the Roman Empire.

2. Theodore Roosevelt and William Howard Taft

Theodore Roosevelt and William Howard Taft both had the honor of serving as President of the United States. Roosevelt would be the 26th and Taft the 27th Commander-in-Chief of the nation.

The fellow Republicans were friends for many years, and Taft was viewed by many as Roosevelt’s protégé. And there was a time when the senior politician had wanted Taft as his successor. But then came the events of 1912: when the Republican National Committee convened in Chicago to pick its Presidential candidate, everything went very sour.

Convention chaos

At the 1912 Republican Party gathering in Chicago, a bitter divide between Roosevelt and Taft developed. Both men were fighting for the nomination, and it quickly got personal between the more conservative and pro-big business Taft and the more progressive and pro-regulation Roosevelt. Taft labeled Roosevelt “the greatest menace to our institutions that we have had in a long time.”

Roosevelt responded by suggesting Taft represented “the forces of reaction and of political crookedness.” Ultimately, Taft won the nomination, but Roosevelt ran as a third-party candidate to scupper his and the Republican Party’s election chances.

3. Harry Houdini and Sir Arthur Conan Doyle

The friendship between Sherlock Holmes author Sir Arthur Conan Doyle and escape artist Harry Houdini was an odd one. But for a time at least, it really worked. Yes, the Scottish-Victorian author who was obsessed with fairies and the supernatural really bonded with the more distrustful Hungarian-American who had no time for frauds.

Their period of friendship began when the escapologist sent the author his book, after which Houdini and Doyle exchanged many letters before meeting in person sometime around 1920. Doyle had Houdini perform a trick at a dinner party, and he truly believed his new pal had magic powers.

The ghost of a dead friendship

Soon after, Doyle made Houdini go with him on a tour of Great Britain, taking the escapologist to attend a host of psychics, which soon began to annoy him. The straw that broke the camel’s back was a séance in Atlantic City, where Doyle’s wife made out she had reached Houdini’s mother, writing pages of text with Christian connotations.

Houdini — of Jewish heritage — did not take kindly to this, and ended his friendship with Doyle abruptly. Doyle didn’t take it lying down, and the pair argued publicly via The New York Times letters pages. Houdini wrote disparagingly, “There is nothing that Sir Arthur will believe that surprises me.” Ouch!

4. Napoleon Bonaparte and Tsar Alexander I

Napoleon Bonaparte made his name during the French Revolution and as a commander during the Revolutionary Wars, before becoming Emperor of France. Tsar Alexander became the Russian equivalent of Napoleon in 1801 and held the position until his death in 1825.

After Russia and France had been battling on opposite sides in the war of the Fourth Coalition, the two met in 1807 on a floating barge and signed the Treaty of Tilsit, during which they rather surprisingly seemed to hit it off. For instance, Napoleon wrote to his wife Josephine stating that Alexander was “especially handsome, like a hero with all the graces of an amiable Parisian.”

Don't invade your friend's country

But whatever warm feelings had been fostered on that floating barge in 1807 would be completely destroyed by 1810. Napoleon tried to put a blockade on the continental trade of his British enemy, but Alexander opened Russia’s ports to Great Britain.

Napoleon was evidently irked by this, and launched a full-scale invasion of Russia a couple of years later. That invasion would be a disaster, and it marked the beginning of the end for Napoleon. The Emperor of France did write to Alexander during the invasion pushing for a reconciliation, but it never came.

5. Nikola Tesla and Thomas Edison

Thomas Edison and Nikola Tesla are both highly regarded inventors in their own right. Indeed, such was their ingenuity that in 1915 it was rumored in the press — mistakenly, as it turned out — that both men were to be awarded Nobel Prizes for their extraordinary contributions to the field of physics.

The American Edison — who invented the light bulb, phonograph, and the moving picture — and the Serbia-born Tesla were friends too in the early days. Tesla actually worked at the Edison Machine Works in 1884 before a major rift developed between the two that couldn’t be reconciled.

The “War of the Currents”

That rift would come when Tesla began championing alternating current over the direct current that Edison favored, the Serbian-American noting the latter’s limitations. Edison wasn’t best pleased with what this young upstart was telling him and disparaged his theories.

Tesla quit working for Edison, and sold numerous patents to Westinghouse. The so-called “War of the Currents” was well underway. Tesla was team A.C. and Edison was team D.C.; both criticized the other publicly and claimed they were sure that their favored electrical system would power the world. Tesla and A.C. were ultimately victorious, and the two never reconciled.

6. Steve Jobs and Bill Gates

As the leaders of tech behemoths Apple and Microsoft respectively, Steve Jobs and Bill Gates' reputations as giants of business and technology who changed the world forever is already secured. The pair started out at around the same time, and they were on friendly terms for a while after they initially met back in the 1970s.

In those early years, Gates and Jobs collaborated on software for the Apple II PC and the succeeding Apple Macintosh. Gates reportedly once observed that more of his staff were working on Apple Mac projects than their own leader Jobs had.

Ripping off Apple?

But the relationship turned sour back in 1985 when Gates’ Microsoft released Windows. Jobs was reportedly left fuming, stating “They just ripped us off completely, because Gates has no shame.” Gates hit back publicly, saying, “If he believes that, he really has entered into one of his own reality distortion fields.”

Microsoft and Apple went up against each other for years afterwards, each man desperately trying to get the upper hand. Some argue that their intense competition led to enhanced rates of innovation. Still, the pair — who traded barbs in public for many years — made up before Jobs’ 2011 death; Jobs treasured a letter that Gates had sent him, according to his widow Laurene.

7. Adolf and Rudolf Dassler

The names Adolf and Rudolf Dassler are ones you might not immediately recognize, but they were a pair of German brothers who between them managed to change the nature of the sports clothing and footwear industries forever.

Yes, the Dassler brothers started out like most brothers: while they mostly got along, somehow bickering was never far away. Then, in the 1930s, they co-founded a small-scale shoe company in their mother’s basement.

Sprinting in different directions

The Dassler brothers suddenly achieved major success when the American athlete Jesse Owens — who starred at the 1936 Olympics in Berlin — donned their footwear for his record-breaking feats.

But this massive upturn in fortune— one that extended well beyond Germany’s borders — only served to create a rupture in the brothers’ relationship: one that would change history. After their and their wives' fallout in 1948 the pair went on to create rival sportswear companies across the city from each other. Rudi formed Puma, whilst Adi Dassler founded — you’ve guessed it — Adidas.

8. Henri Matisse and Pablo Picasso

Henri Matisse and Pablo Picasso are both regarded as giants of the art world today. The Frenchman and the Spaniard have both created numerous acclaimed pieces of art that are today worth millions of dollars and are prized by collectors.

The pair reportedly enjoyed a warm relationship in the early 20th century. They first met in Paris back in 1906 and bonded over their love of artist Paul Cezanne, a man they both regarded as the “master.” Cezanne had a considerable influence on both men.

Offended by cubism

Yet a rift formed between Matisse and Picasso soon afterwards that changed the art world forever. Sadly, it couldn’t be resolved. Along with their personal differences, and a sprinkling of jealousy and rivalry, it centered around the latter’s approach to art, and the supposed desecration of Cezanne’s ideas by Picasso.

You see, the older Matisse was a more traditional artist and man, who focused on painting colorful still life works in homage to Cezanne. Picasso, though, completely turned Cezanne’s approach on its head; his new abstract style of art featuring colorless shapes and planes became known as cubism. The uptight and traditionalist Matisse hated it, and he let that be known publicly. Picasso stuck to his guns and changed art forever; he never made up with his elder colleague.

9. John Lennon and Paul McCartney

John Lennon and Paul McCartney should need little introduction to you. They are, of course, probably the most successful songwriting partnership in music history, the twin musical geniuses who drove the success of The Beatles.

Lennon and McCartney had met in 1957 at a church party in Liverpool and soon became inseparable. They bonded firstly over a love of rock n’ roll and then a mutual experience of loss: both their mothers died young while their sons were still teenagers. In the early days of The Beatles, Lennon famously remarked that they wrote songs “eyeball to eyeball.”

Trading barbs with solo songs

But choppier waters lay ahead, and the relationship between Lennon and McCartney started to become strained by the middle of the 1960s. The once-close duo began to write songs apart, though still maintaining the Lennon/McCartney credit; they had increasingly different ideas for songs and interests.

Lennon’s relationship with Japanese artist Yoko Ono is often cited as the main reason for their fallout and the end of The Beatles, but in truth reasons for the split encompassed lots of things, including creative differences, contract disputes, and recreational drug use. After the band ended, the pair embarked on solo careers, and traded barbs on songs such as McCartney’s “Too Many People” and Lennon’s “How Do You Sleep?” Thankfully, they made up a few years before Lennon was tragically shot and killed by a crazed fan in December 1980.

10. Leon Trotsky and Frida Kahlo

Leon Trotsky rose to international prominence as a leader of the Russian Revolution that saw Lenin and the Bolsheviks seize power in October 1917. Frida Kahlo, meanwhile, was a much-vaunted Mexican artist and political activist on the left.

As a committed communist, Kahlo was naturally drawn to the much-older Trotsky, who was seen as an important figure on the left. They would meet for the first time in 1937 when Trotsky was 57 and Kahlo was 29. Trotsky had been expelled from the Soviet Union’s leadership by then; he was eventually given political asylum in Mexico. The pair soon consummated a warm relationship that for several months turned romantic.

Kahlo turns Stalinist

Trotsky and Kahlo ended their physical relationship after an ultimatum from the former’s wife. They remained friends for a little while, during which time Kahlo handed the revolutionary a self-portrait. But Trotsky became increasingly insignificant and friendless following Stalin’s consolidation of power, and Kahlo and her husband Diego Rivera followed the herd to become Stalinists and reject Trotsky.

Trotsky attempted to reconcile with Kahlo with a letter, but he was ignored. Then in 1940, after Trotsky had been murdered with an ice pick, Kahlo was put in jail, suspected of being an accomplice. She was eventually released, but the shadow of suspicion illustrated just how much their relationship had declined. All the same, ultimately Trotsky and his politics had wielded a considerable influence on Kahlo and the direction that her art took.

11. Joe Frazier and Muhammad Ali

Muhammad Ali and Joe Frazier are two of the most iconic boxers of all time. The former world heavyweight champions had a storied relationship, one that would see them trade blows in three epic bouts, and also outside the ring.

In the early years, it all started off well. Ali and Frazier were pals, and talked up a future mega-fight. Then, when Ali lost his boxing license due to his anti-Vietnam War stance, Frazier made a point of helping him regain it.

Ali’s hurtful jabs

But when it came to preparing for that heavyweight title bout — dubbed “The Fight of the Century” — Ali turned personal on his opponent and friend. To try and gain a psychological advantage, he verbally abused Frazier, calling him a “gorilla” and an “Uncle Tom,” the latter suggesting he was a tool of the white man and the establishment.

Frazier — whose family suffered abuse and bullying after Ali’s taunts — was not surprisingly incensed; he drew on that anger to win the much-hyped first bout. Famously, Ali recovered to win the last two of the eventual trilogy. Sadly, despite various thaws, the pair could not fully make up before Frazier’s death in 2011.

12. Fidel Castro and Ernesto ‘Che’ Guevara

Fidel Castro and Ernesto “Che” Guevara are world-renowned as being close allies and combatants in the successful Cuban Revolution, which saw Castro’s rebel army finally seize power from the U.S.-backed Fulgencio Batista dictatorship on January 1, 1959.

The Cuban and Argentine revolutionaries had first met in 1954 in Mexico, and they quickly realized they had a great deal in common when it came to political views and aims. Castro and Guevara became close pals and started a lengthy armed struggle against the hated Batista regime, a fight in which Guevara’s guerilla warfare skills became evident.

“Fidel betrayed me”

After Castro and Guevara’s long guerilla struggle with the July 26th Movement to overthrow Batista succeeded, Castro took leadership of Cuba and gave his trusted lieutenant Guevara the responsibility of running the national bank and the country’s largest prison. Yet Guevara soon grew restless and wanted to return to guerilla warfare, with the aim of bringing about revolutionary change in other countries under imperial domination.

In 1965 this quest took Guevara to Bolivia, but the move seemingly led to a rift between the once-close allies. In fact, in 1967 when the Bolivian army and the CIA finally caught up with him and his revolutionaries, the Argentine repeatedly shouted “Fidel betrayed me” before his execution. Although it would almost certainly have been fruitless, Castro didn’t even bother to try and intervene to save Guevara; their communication had reportedly stopped months before he was executed.

13. Zora Neale Hurston and Langston Hughes

Langston Hughes and Zora Neale Hurston were both prominent authors and chroniclers of the African-American experience in their lifetimes. Perhaps not surprisingly then, Hughes — a key figure in the Harlem Renaissance — and Hurston — author of Their Eyes Were Watching God — were good friends for a period.

Yes, the elder Hurston sort of took Hughes under her wing, despite their differences in personality and upbringing, and championed his work. Southerner Hurston was a unpretentious anthropologist, whilst Hughes was an cultured poet, but they were united in their mission of chronicling the Black experience accurately on the page.

Actions motivated by romance?

Yet the relationship between Hurston and Hughes would eventually sour to the extent it couldn’t be reconciled. This fallout was a classic tale of professional jealousy and ambition, and perhaps even love. It all kicked off when Hurston tried to assume complete credit for a 1930 play entitled The Mile Bone that she had worked on with Hughes.

Worse still, Hurston did so whilst Hughes was recovering from sickness at his mom’s house. Both writers subsequently had versions of it copyrighted and took legal action. But was Hurston actually motivated by romantic feelings? Several scholars have suggested she may have had an unrequited love for him, not helped by his closeness to typist Louise Thompson. Whatever the truth, their friendship sadly never recovered from this saga.

14. Nero and Seneca the Younger

The story of Nero and Seneca’s friendship and the latter’s demise is a pretty horrifying one. Seneca the Younger was a philosopher of the Roman Era, and Nero was just a teenage boy when they first met. The thinker had been brought out of exile by Nero’s mom Agrippina, the wife of Roman Emperor Claudius.

To begin with, Seneca and Nero got on well. Seneca tutored Nero and became something of a mentor to the teenage heir to the throne. The philosopher helped Nero build the confidence to give public addresses, in particular the eulogy to his late father that saw him become Emperor. Upon that ascension to the throne, Seneca became a trusted advisor.

Knives out

Alas, the friendship between the philosopher and newly crowned Emperor would turn horribly sour. The increasingly egotistical and power-crazed Nero started to become irritated by Seneca advising him what to do. Nero began to do some extremely horrible things, including having his own mother murdered in 59 CE. His chief philosopher was evidently appalled but perhaps through fear was involved in the cover-up.

Seneca then tried to retire from public life and focused on philosophy. But in 65 A.D., when there was an assassination attempt on Nero, the Emperor decided to accuse Seneca of treason. As a result, Nero demanded his former confidant and tutor killed himself, and Seneca — presumably reluctantly — duly obliged.

15. Thomas Jefferson and John Adams

Thomas Jefferson and John Adams are celebrated in the U.S. as being among the Founding Fathers of the nation and former Presidents too. The pair first encountered each other in 1775 when they were both attending the Second Continental Congress as delegates.

Jefferson and Adams had considerable differences on a personal and political level, but in the early years they became close pals all the same. And when the statesmen traveled to Europe in the 1780s to represent the U.S. diplomatically, that kinship only grew.

Confounding fathers

Yet upon Jefferson and Adams’ return to the U.S. to participate in the writing of the Constitution, those political differences came to the fore and damaged their once-close friendship. In a nutshell, Adams favored a strong federal government, whilst Jefferson leaned much more towards a decentralized one and state-held rights.

Jefferson and Adams then became presidential rivals in 1796 . Adams came out on top, while Jefferson adopted a role as an undermining Vice President. Things came to a head in 1800 during another battle for the presidency that Jefferson won after ordering a smear campaign against his former friend. They didn’t speak much or at all until they exchanged letters in 1809. Amazingly and perhaps fittingly, both men died on the same day: July 4, 1876, 50 years to the day after the Declaration of Independence had been signed.

16. Thomas Becket and Henry II

Thomas Becket rose from a well-connected merchant family to become the Chancellor of England in 1155. He was appointed to that role by King Henry II on the recommendation of Theobald the Archbishop of Canterbury.

Henry II and Becket immediately hit it off, and traveled around England together in their roles, whilst enjoying hunting and gaming in their downtime. Becket was living the high life in the royal court, using his now-considerable wealth to decorate his residences and throw lavish parties. In 1162 Becket became Archbishop of Canterbury himself, having been nominated by the King.

My king takes your bishop

But soon after, things turned shockingly sour. Henry II had hoped that nominating Becket as Archbishop of Canterbury would guarantee his help in reducing the power of the Church, thereby boosting his own personal influence still further. But Becket was deeply religious, and he decided to try and protect the Church’s right to direct its own affairs.

Big mistake: Becket was duly forced to escape England by a fuming Henry II, and he resided in France for a time. The pair seemingly reconciled in 1170 and Becket returned to England as Archbishop to much fanfare. But after Henry II appointed his son as co-King, Becket’s opposition to this abuse of power led to the monarch ordering his murder in Canterbury Cathedral by loyal knights on December 29, 1170.

17. Mary Todd Lincoln and Elizabeth Keckley

Mary Todd Lincoln was the wife of Abraham, the President who had led the United States through the Civil War. During those terrible years amidst the horrors of the Union and Confederate conflict, she became close friends with her seamstress, an African-American named Elizabeth Keckley.

Keckley was a former slave who had managed to buy her freedom in 1855 and set up a successful clothing business in Washington D.C. A few years later in 1861 Keckley then became the personal dressmaker of Mrs. Lincoln, and a regular at the White House.

Keckley’s tell-all book

During her time as Mrs. Lincoln’s dressmaker, Keckley became a trusted confidante and traveling companion of the First Lady. Despite their clear social, cultural, and economic differences, they bonded over everything from fashion to shared heartache from tragedies. Both women lost sons during the Civil War, and Keckley comforted Mrs. Lincoln after her husband’s assassination.

But the relationship was ruined when Keckley decided to cash in and write a tell-all book about her time with the Lincolns in the White House in 1868. Keckley went from being Mrs. Lincoln’s ‘best living friend” to a person to whom she would never speak again, despite the former’s efforts to rebuild their friendship.

18. Alexander the Great and Cleitus the Black

Alexander the Great was the King of Macedon from 336 B.C. He was famous for creating one of the biggest empires in human history and for never losing a military campaign as a commander. His one-time close friend was Cleitus the Black, the commander of the Royal Squadron of the King’s elite Companions cavalry unit.

Although the historical record is comparatively thin given the era, Alexander and Cleitus were believed to have been quite close friends, and then of course military allies too, after Alexander succeeded his father Phillip II in 336 B.C. at the age of just 20.

Speared by Alexander

But that close friendship had evidently evaporated away into nothing by 328 B.C. That’s because in that fateful year, Alexander murdered his old friend while at a banquet in Maracanda.

Alexander reportedly drove a spear through his one-time friend and military commander in a drunken rage, which had been provoked by Cleitus’s support for the old guard and Alecxander’s father Phillip II. The self-declared Divine King is said to have bitterly regretted his angry moment soon after, even contemplating killing himself.

19. Christopher “Biggie” Smalls and Tupac Shakur

Though they were both born in New York, Christopher “Biggie” Smalls and Tupac Shakur came to represent East and West Coast rap respectively during their short lives. Tupac spent most of his career out in Los Angeles, whereas “The Notorious B.I.G.” continued to rep New York.

The two rappers were initially friendly after meeting on the set of Poetic Justice in 1993. Biggie enthused to Vibe, “We just clicked off the top and were cool ever since.” But the following year their warm relationship would turn into a deadly rivalry, one that changed hip-hop history forever.

Drive-by deaths one year apart

Yes, on November 30, 1994, Tupac was robbed and shot five times outside Quad Recording Studios in New York. He survived, but he soon suspected Biggie knew something about it. When Biggie released “Who Shot Ya?” a year later, it served to confirm Pac’s suspicions, even though the Notorious B.I.G. claimed the song had been written before the shooting and was unrelated. Their friendship though, was done.

Tupac signing with Death Row Records led to a hyped-up East Coast/West Coast rap war, which ultimately cost both men their lives. Pac released “Hit’ Em Up,” which addressed the shooting and his apparent affair with Biggie’s missus Faith Evans. Then Tupac was fatally gunned down in 1996; many suspected Biggie’s involvement again. It led to a likely retaliatory murder of the Notorious B.I.G. in March 1997 and the altering of hip-hop history forever.

20. Henry VIII and Thomas More

Henry VIII could be a brutal tyrant; that obvious truth is amply illustrated by the way his friendship with philosopher Thomas More turned extremely ugly. Back in 1516 More had been one of the most highly regarded intellectuals in England. He gained fame for a satirical work called Utopia that called for an ideal government administered by reason.

Henry subsequently brought More into his inner circle as a courtier, and despite the latter’s catholicism the two became friends. More served under the King in several cabinets, and he was even knighted by him.

Off with his head

But Henry severed his relationship with More — and indeed his friend’s head — when the latter opposed his plan to split England from the Catholic Church so he could divorce Catherine of Aragon and marry Anne Boleyn.

Their split occurred in 1527 when the King wished to dispose of his wife, who had failed to bear him a male heir. Eight years later, Henry had More tried in a kangaroo court on the charge of treason; the King’s former ally was duly found guilty and beheaded. The devout More accepted his fate with impressive grace: before his execution he thanked the King for ridding him of “the miseries of this wretched world.”