Perkin Warbeck (circa 1474 – 23 November 1499) was a pretender to the English throne during the reign of King Henry VII of England. By claiming to be Richard of Shrewsbury, Duke of York, the younger son of King Edward IV, one of the Princes in the Tower, Warbeck was a significant threat to the newly established Tudor Dynasty, and gained support outside England. Henry VII declared that he was an impostor and after Warbeck's capture declared that he was a Fleming born in Tournai around 1474.
Due to uncertainty as to whether Richard of Shrewsbury had died in the Tower of London, or had survived, Warbeck's claim gathered some followers, whether due to real belief in his identity or because of desire to overthrow Henry and reclaim the throne. Most historical accounts mention that Warbeck cost Henry VII over £13,000, putting a strain on Henry's weak financial state.
Read more about Perkin Warbeck: Early Life, Claim To The English Throne, First Landing in England and Support in Scotland, Second Landing in Cornwall, Imprisonment and Death, Appearance, Warbeck in Popular Culture