Glyndwr Michael (4 January 1909 – 24 January 1943) was a homeless Welsh man whose body was used in Operation Mincemeat, the successful Second World War deception plan that lured German forces to Greece prior to the Allied invasion of Sicily. The invasion was a success, with Allied losses numbering several thousand fewer than would have been expected had the deception failed.
Michael was born in Aberbargoed in Wales and previously held part-time jobs as a gardener and labourer. His father Thomas, a coal miner, committed suicide when Michael was fifteen years old; his mother later died when he was thirty-one. Michael, homeless, friendless, depressed and with no money, drifted to London where he lived on the streets. He was found in an abandoned warehouse close to King's Cross, seriously ill from ingesting rat poison that contained phosphorus. Two days later, he died at age 34 in St. Pancras Hospital. His death may have been suicide, although an alternative theory suggested he may have simply been desperately looking for something to eat, as the particular poison he ingested was a paste smeared on bread crusts to attract rats.
After being ingested, phosphide reacts with hydrochloric acid in the stomach, generating phosphine, a highly toxic gas. Bentley Purchase, coroner of St. Pancras District, explained, "This dose was not sufficient to kill him outright, and its only effect was so to impair the functioning of the liver that he died a little time afterwards". When Purchase obtained Glyndwr's body, it was identified as being in suitable condition for a man who would appear to have floated ashore several days after having died at sea by hypothermia and drowning.
Before Michael, finding a usable cadaver had been difficult, as indiscreet inquiries would cause talk, and it was impossible to tell a dead man's next of kin what the body was wanted for. The dead man's parents had died and no known relatives were found. The body was released on the condition that the man's real identity would never be revealed. Ewen Montagu later claimed the man died from pneumonia, and that the family had been contacted and permission obtained, but none of that was true.