His father died on 3 August 1562, shortly after making his will. Because he held lands from the Crown by knight service, his son became a royal ward of the Queen and was placed in the household of Sir William Cecil, her secretary of state and chief advisor. At 12, de Vere had become the 17th Earl of Oxford, Lord Great Chamberlain of England, and heir to an estate whose annual income, though assessed at approximately £2,500, may have run as high as £3,500 (£ as of ).