Earl William Beauchamp of Warwick
William was born about 1375.  He died before 1431.

 Catherine de Ufflete
Catherine was born in 1385.

 Baron John Beauchamp of Powycke
John was born about 1409 in Powyck, Worchester, England.  He died on April 9th, 1475 in Powyck, Worchester, England.