Question: When did Elizabeth Stafford's father die?
Sentence (from "William Stafford (courtier)"): Sir William Stafford, of Chebsey, in Staffordshire (c. 1500 – 5 May 1556) was an Essex landowner and the second husband of Mary Boleyn, who was the sister of Anne Boleyn and one-time mistress of King Henry VIII of England.
Relevant evidence: Yes