Sir John de Grey 1st Lord Grey of Rotherfield

✓ Sir John de Grey, 1st Lord Grey of Rotherfield, KG (a Founder Knight of the Garter, 1348), Steward of the Household to Edward III; son and heir of Sir John de Grey of Rotherfield (I100691) and Margaret de Odingsells - RING; m. (1) before 1 Mar 1311/12 Katherine FitzAlan, mother of John, 2nd Lord; (2) Avice Marmion, mother of the Grey-Marmion line (not ours). Built Greys Court. Sources: Complete Peerage VI pp.145-148 (GREY of Rotherfield); D. Richardson, Royal Ancestry (2013) III p.364, IV pp.274-277; Magna Carta Ancestry (2005) p.630; as compiled by Bill Marshall's database (billmarshall.s3, I18696, I148058) and our-royal-titled-noble-and-commoner-ancestors.com p1534. [DIRECT ANCESTOR OF THE COMPILER: flag added 15 Oct 2026 by walking the tree from Aynsley, so that this marker is reliable and can be searched.]