Elizabeth de Clinton

Elizabeth de Clinton married Sir John FitzWilliam, son of Sir John FitzWilliam and Joan Reresby, circa 1350; They had 5 sons (Sir William; Edmund, Esq; John; Richard; & Thomas) and 3 daughters (Mary, wife of Henry Hastings; (daughter), wife of Sir Edmund Pierpont); and Elizabeth, wife of Sir Brian Thornhill). Elizabeth de Clinton died after 1400; She was illegitimate or the legitimate daughter of her father's 1st marriage (mother's name unknown).

http://our-royal-titled-noble-and-commoner-ancestors.com/p429.htm#i...