Question: What is the date of death of Henry Stafford (Died 1471)'s father?
Sentence (from "Henry Stafford (died 1471)"): Sir Henry Stafford (c. 1425 – 4 October 1471) was the second son of Humphrey Stafford, 1st Duke of Buckingham and Lady Anne Neville, daughter of Ralph de Neville, 1st Earl of Westmorland, and Lady Joan Beaufort.
Relevant evidence: Yes