Battle of Wakefield
The castle thereby passed to the Mortimer family who held it until 1425, when the male line died out with Edmund Mortimer, 5th Earl of March. After this the estate passed to Richard of York, son of Edmund's sister Anne Mortimer by Richard of Conisburgh, 3rd Earl of Cambridge. Richard of York was killed at the Battle of Wakefield in 1460, and in 1461 his son, King Edward IV, appointed Germyn Lynch, goldsmith of London, to be his representative at Trim as warden and master worker of the new issues of moneys and coins within the Castles of Dublin and Trim, and the town of Galway.