Sir Henry de Grey, of Codnor, Grays, Aylesford and Hoo, both of Kent; campaigned in Gascony 1294-97; in Edward I's army at Siege of Carlaverock 1300 and campaigned in Scotland as late as 1306; summoned to an assembly which met 1298/9 - 16 Aug 1308 and which by certain past rulings has been designated a Parliament, although neither knights nor burgesses were summoned and under the more rigorous rules of evidence required today would not constitiute a sitting such as could give rise to a peerage creation. [Burke's Peerage]
Title: Ancestral Roots of Certain American Colonists, 7th Edition, by Frederick Lewis Weis, additions by Walter Lee Shippard Jr., 1999
Page: 50-31
Title: Burke's Peerage & Baronetage, 106th Edition, Charles Mosley Editor-in-Chief, 1999
Page: 1228