TD
Turstin de Bastembourg
Vitals
Family
About
Turstin de Bastembourg, a Norman lord recorded by Orderic Vitalis himself, was father of Gisela and forebear of the honour that fed the Beaumont-sur-Oise match.
Research notes
✓ ORDERIC FIRST-HAND (vol.1 p.408, verified this day): father of Gisela (our line). FRONTIER above. RING 15 Oct 2026: also father of Hugh 'cum barba' de Montfort-sur-Risle (Guillaume de Jumièges), through whom the Montfort-Gant-Welles line descends. Added 14 Sep 2026.