Question: When was Thomas Of Woodstock, 1St Duke Of Gloucester's father born?
Sentence (from "Thomas of Woodstock, 1st Duke of Gloucester"): Thomas of Woodstock, 1st Duke of Gloucester (7 January 13558 or 9 September 1397) was the fifth surviving son and youngest child of King Edward III of England and Philippa of Hainault.
Relevant evidence: Yes