John Greystoke, 4th Baron Greystoke English soldier and diplomat (c.1390–1436) (1390–1436) Parents Ralph de Greystoke, 3rd Baron Greystoke Katherine de Clifford Children Anne de Greystoke Joane de Greystoke Eleanor Eure Ralph Greystoke, 5th Baron Greystoke Elizabeth de Greystoke Siblings Jane Greystoke Maud Greystoke Partners Elizabeth Ferrers