Maurice FitzGerald de Windsor b.1100 d. 1st Sep 1176, Wexford Ireland known as "The Invader of Ireland". see "The Complete Peerage vol. VII" page 200. 2nd son was Gerald FitzMaurice, b. 1150 (ancestor of Thomas fitzJohn Fitzgerald 6th Earl of Desmond) 3rd son was Thomas fitzMaurice b.c.1152 (acceded Shanid, died c.1213 was ancestor of "The White Knight". ROBERT FitzGerald de ADAIR supposedly fought a battle with the "White Knight", Maurice fitzMaurice fitzGerald d.1414 who apparently was a very distant cousin.