Osbern de Crepon the Steward

✓ Osbern de Crepon, 'the Peaceful', steward (dapifer) of Dukes Robert I and William II, murdered in the boy duke's bedchamber at Vaudreuil c.1040 (William of Jumieges: 'Osbernus... procurator principalis domus, Herfasti Gunnoris comitissae fratris filius'); m. Emma d'Ivry; father of William FitzOsbern, Osbern Bishop of Exeter and Emma de Vernon. Source: Medieval Lands (fmg.ac, Cawley), 'Normandy - Aumale, Rouen, Eu (normacre)'. [DIRECT ANCESTOR OF THE COMPILER: flag added 25 Oct 2026 by walking the tree from Aynsley, so that this marker is reliable and can be searched.]