Peter Llewelyn Davies MC (25 February 1897 – 5 April, 1960) was the middle of five sons of Arthur and Sylvia Llewelyn Davies, one of the Llewelyn Davies boys befriended by J. M. Barrie. Barrie publicly identified him as the source of the name for the title character in his famous play Peter Pan, or The Boy Who Wouldn't Grow Up, and his public identification as the "original Peter Pan" plagued him throughout his life, which ended in suicide.
Barrie became guardian of Davies and his brothers George, Jack, Michael, and Nico following the separate deaths of their father (1907) and mother (1910). Davies, like his brothers (apart from Jack), attended Eton College.
In 1917, while still in the military, Davies met and began to court Vera Willoughby, a married woman in her late 30s with a daughter. He stayed with her when on leave, which scandalized Barrie and caused a rift between the two. His former nurse and mother figure Mary Hodgson disapproved strongly as well. The relationship continued at least through the end of his military service in 1919.
His brother, Michael Llewelyn Davies, drowned at the age of 20 while at Oxford University in 1921. Michael's best friend, Rupert Buxton, drowned with him, and the circumstances have since led some to speculate that they may have been lovers in a suicide pact.
Davies married Margaret Ruthven in 1931, and had three sons with her: Ruthven (b. 1933), George (b. 1935) and Peter (b. 1940). He went on to be a publisher, most notably of his cousin Daphne du Maurier's work about their grandfather, illustrator and writer George du Maurier, The Young George du Maurier, letters 1860–1867 (1951).
He grew to dislike having his name associated with what he called "that terrible masterpiece". He was also excluded from Barrie's will — instead of his fortune going to the surviving brothers upon his death in 1937, most of it went to his secretary Cynthia Asquith, and in 1929, Barrie had given the copyright to the Peter Pan works to Great Ormond Street Hospital for Children in London. Some have speculated that this drove Davies to drink — he eventually became an alcoholic. Davies' son Ruthven later told an interviewer:
"My father had mixed feelings about the whole business of Peter Pan. He accepted that Barrie considered that he was the inspiration for Peter Pan and it was only reasonable that my father should inherit everything from Barrie. That was my father's expectation. It would have recompensed him for the notoriety he had experienced since being linked with Peter Pan — something he hated."