v2 p215
42939 (his children by his first wife or second wife?)
4. John, Ld Beaumont, by his first wife, Catharine Everingham had: 3 sons: 1. Henry, 2. Thomas, 3. Richard; ... his second wife Elizabeth, d/o Thomas Mowbray, Earl-Marshal, widow of Nicholas, Lord Audley, of Heleigh, who surviving him, was afterwards married to Michael de la Pole, Earl of Suffolk.
v2 p225 Pedigree Chart: Catharine Everinhham = John, L. Beaumont 1397 = Elizabeth Mowbray; children from Elizabeth Mowbray: Henry, L. Beaumont 1413; Sir Thomas 1458; Richard