He married Anne of Gloucester as her second husband under special licence,[1] as she was the widow of his brother Thomas Stafford, 3rd Earl of Stafford who had died prior to the consummation of his marriage at the age of 18.
[2] Anne was the granddaughter of King Edward III by his son Thomas of Woodstock, 1st Duke of Gloucester and Eleanor de Bohun.
The death of the earl at the battle of Shrewsbury is mentioned in Henry IV Part 1 but otherwise he is not in the play.
"And thou shalt find a king that will revenge Lord Stafford’s death".
Henry IV Part 1 Act 5 Scene 3 by William Shakespeare.