Robert de Vere, 3rd Earl of Oxford hereditary Master Chamberlain of England (1101–1221) Parents Agnes of Essex Aubrey de Vere, 1st Earl of Oxford Children Sir Henry de Vere Eleanor de Vere Hugh de Vere, 4th Earl of Oxford Siblings Aubrey de Vere, 2nd Earl of Oxford William de Vere Alice de Vere Sarah de Vere Ralph de Vere Partners Isabel de Bolebec