Elizabeth de Vere, Countess of Derby British businesswoman (1575–1627) Parents Anne Cecil, Countess of Oxford Edward de Vere, 17th Earl of Oxford Children James Stanley, 7th Earl of Derby Anne Stanley, Countess of Ancram Robert Stanley Siblings Susan de Vere, Countess of Montgomery Bridget de Vere, Countess of Berkshire Henry de Vere, 18th Earl of Oxford Edward de Vere Partners William Stanley, 6th Earl of Derby