They Swore It Was Him
Before fingerprints, DNA testing, computerized records, and instant photographs, proving someone's identity could be surprisingly difficult. Sometimes families welcomed complete strangers as missing relatives. Courts convicted innocent people. Pretenders nearly seized thrones. These extraordinary cases demonstrate just how dramatically history can change when somebody asks one deceptively simple question: Who are you? (Above: police mugshots for the falsely identified Adolf Beck).
Martin Guerre
French peasant Martin Guerre disappeared around 1548, leaving behind his wife and child. Eight years later, another man appeared and convinced Guerre's relatives, neighbors, and eventually his wife that he was Martin. The impersonation lasted years before the astonishing truth emerged during a courtroom proceeding: the real Martin Guerre suddenly walked through the door.
Arnaud Du Tilh
The man impersonating Martin Guerre was eventually identified as Arnaud du Tilh. His knowledge of Guerre's personal history was so convincing that witnesses remained divided over his identity during his trial. Du Tilh might even have escaped conviction had the genuine Martin not dramatically returned. The impostor was ultimately sentenced to death.
The Tichborne Claimant
Roger Tichborne disappeared after a shipwreck in 1854. Years later, an Australian butcher claimed to be the missing English aristocrat. Amazingly, Roger's own mother accepted him as her son. Other relatives disagreed, producing one of Victorian Britain's greatest courtroom spectacles. The claimant was eventually convicted of perjury and identified as Arthur Orton.
Lady Tichborne
Perhaps the strangest part of the Tichborne affair was Lady Tichborne's certainty. Despite significant differences between the claimant and her missing son, she recognized him almost immediately and provided him with financial support. Her acceptance gave his extraordinary story credibility and helped transform a questionable identity claim into a national sensation.
Anna Anderson
After the Russian imperial family was murdered in 1918, rumors persisted that Grand Duchess Anastasia had escaped. Anna Anderson became the most famous woman claiming to be her. Some Romanov acquaintances believed her; others vehemently rejected her. Decades after Anderson died, DNA evidence demonstrated that she was not Anastasia.
Perkin Warbeck
Perkin Warbeck claimed to be Richard, Duke of York, one of the mysterious Princes in the Tower. His story was convincing enough to win recognition from important European rulers, including Scotland's James IV. Henry VII finally captured Warbeck, who confessed to being an impostor and was executed in 1499.
Lambert Simnel
Barely established on England's throne, Henry VII faced another supposed lost prince. Lambert Simnel was presented as Edward, Earl of Warwick, even though the real Warwick remained imprisoned in the Tower of London. Simnel's supporters nevertheless crowned the boy in Dublin before their rebellion was defeated at the Battle of Stoke Field.
False Dmitry I
After the death of Russia's young Dmitry of Uglich, a mysterious man appeared claiming he was the supposedly murdered prince. Amid political chaos, enough Russians accepted his identity that he actually became tsar in 1605. His astonishing success ended the following year when opponents overthrew and killed him.
False Dmitry II
One fake Dmitry apparently wasn't enough. Another pretender appeared after False Dmitry I's death and claimed that he was the same supposedly murdered prince. Even more remarkably, Marina Mniszech, widow of False Dmitry I, recognized the new claimant as her husband. He established a rival court before being killed in 1610.
False Dmitry III
Russia's Time of Troubles produced yet another claimant to Dmitry's identity. False Dmitry III emerged in 1611 and attracted supporters around Pskov. His claim never achieved the extraordinary success of the first pretender, and he was eventually captured. Few historical identities have attracted quite so many determined replacements.
Adolf Beck
Norwegian businessman Adolf Beck was repeatedly identified by women as a swindler who had deceived them. Authorities also confused him with an earlier criminal known as John Smith. Beck was convicted twice before the actual culprit appeared, proving that eyewitnesses and investigators had disastrously identified the wrong man.
The Beck Case Changed British Law
Beck's ordeal became more than an embarrassing judicial mistake. His wrongful convictions helped demonstrate how vulnerable courts were to mistaken eyewitness identification and inadequate appeals procedures. Public outrage contributed to reforms culminating in the Criminal Appeal Act of 1907 and the creation of Britain's Court of Criminal Appeal.
Joseph Lesurques
Frenchman Joseph Lesurques was accused of participating in the notorious 1796 Lyon mail-coach robbery and murder. Witnesses identified him as one of the perpetrators, despite his insistence that they had confused him with another man. Lesurques was convicted and guillotined, while evidence later strengthened the argument that authorities had executed an innocent look-alike.
Kaspar Hauser
Kaspar Hauser appeared mysteriously in Nuremberg in 1828, claiming to have spent much of his childhood imprisoned in isolation. Rumors eventually identified him as a missing prince of Baden. The theory survived for nearly two centuries, but a 2024 genetic investigation provided strong evidence that Hauser was not a member of Baden's ruling family.
The Man In The Iron Mask
Voltaire helped popularize the idea that Louis XIV's mysterious masked prisoner possessed an extraordinary secret identity. Over subsequent centuries, candidates ranged from a royal relative to the king's supposed twin brother. Modern historians generally favor less sensational candidates, demonstrating how an unknown identity can become more famous than the person himself.
Princess Caraboo
In 1817, an unfamiliar young woman appeared in Gloucestershire speaking an incomprehensible language. She was eventually "identified" as Princess Caraboo from the imaginary island of Javasu and became a sensation among English society. Her actual identity was Mary Baker, an English cobbler's daughter who had successfully invented an exotic royal persona.
Mary Baynton
During Henry VIII's turbulent reign, Mary Baynton reportedly claimed that she was the king's daughter, Princess Mary. The deception was especially dangerous because the real Mary had become politically vulnerable following Henry's break with Rome. Baynton's royal impersonation eventually collapsed, but she somehow escaped the gruesome fate that might have been expected.
Peter Gordon
The disappearance of wealthy Canadian Ambrose Small in 1919 produced years of rumors, sightings, and supposed explanations. One particularly strange episode involved men claiming knowledge of Small's whereabouts or identity. The case illustrates a recurring problem after famous disappearances: witnesses begin "recognizing" missing people almost everywhere, often long after reliable leads disappear.
The Cardiff Giant
When workers supposedly uncovered a petrified ten-foot man in New York in 1869, thousands accepted the Cardiff Giant as an ancient human being. Scientists quickly challenged that identification. The "body" was actually carved gypsum, secretly commissioned by George Hull as an elaborate hoax intended partly to ridicule literal interpretations of biblical giants.
The Piltdown Man
Fragments discovered in England beginning in 1912 were identified as belonging to an ancient human ancestor and became known as Piltdown Man. The identification survived for decades. Improved testing finally exposed the specimen as a fraud combining a relatively recent human skull with the deliberately altered jaw of an orangutan.
The Hitler Skull
For decades, a skull fragment held in Russian archives was widely associated with Adolf Hitler and presented as evidence connected to his death. In 2009, American researchers examining a sample reported that it belonged to a woman. The finding demonstrated how even one of history's most scrutinized deaths could generate an extraordinary identification controversy.
Anastasia Claimants
Anna Anderson was only the most famous supposed Romanov survivor. Numerous people claimed to be Anastasia or other members of the imperial family after the Russian Revolution. Discovery and genetic identification of the Romanovs' remains eventually demolished the survival stories, showing how uncertainty surrounding a famous death can sustain mistaken identities for generations.
The Princes In The Tower
When children's bones were discovered beneath a staircase in the Tower of London in 1674, they were assumed to belong to Edward V and his brother Richard, who disappeared in 1483. The remains were later placed in Westminster Abbey, but their identities have never been conclusively established through modern genetic testing.
Louis XVII Pretenders
Louis XVI's young son Louis-Charles died while imprisoned during the French Revolution, but uncertainty about his fate produced numerous men claiming to be the lost Louis XVII. One claimant, Karl Wilhelm Naundorff, attracted devoted supporters. Modern genetic evidence has strongly supported the conclusion that the imprisoned boy really did die in 1795.
The Unknown Child Of The Titanic
After the Titanic disaster, rescuers recovered the body of an unidentified toddler. He was buried in Halifax as the "Unknown Child." Researchers initially identified him as Finnish boy Eino Panula, but improved DNA analysis later established that he was actually 19-month-old Sidney Leslie Goodwin, whose entire family died aboard the ship.
Shawn Lake And Patricia Noonan
After a 1984 Iowa crash killed both girls’ fathers, authorities mistakenly declared 16-year-old Patricia Noonan dead and identified 14-year-old Shawn Lake as the badly injured survivor. Shawn was buried under Patricia’s name while Patricia lay comatose as “Shawn.” Two weeks later, Patricia awakened and identified herself; fingerprints confirmed the extraordinary mistake, and Shawn’s body was exhumed and reburied correctly.
Mistakes Can Outlive Everyone
Mistaken identity thrives when records are incomplete, bodies disappear, witnesses are frightened, or families desperately want someone to have survived. Modern DNA analysis has resolved mysteries that once seemed impossible, but cases like Martin Guerre and the Tichborne Claimant reveal something technology cannot change: people can become remarkably certain they recognize someone when they are completely wrong.
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Sources: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16