Question: Why did Peter Llewelyn Davies's mother die?
Sentence (from "Peter Llewelyn Davies"): 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 and later informally adopted by J. M. Barrie.
Relevant evidence: Yes