Question: What is the date of death of Edmund Of Langley, 1St Duke Of York's father?
Sentence (from "Edmund of Langley, 1st Duke of York"): Edmund of Langley, 1st Duke of York, KG (5 June 13411 August 1402) was the fourth surviving son of King Edward III of England and Philippa of Hainault.
Relevant evidence: Yes