In the summer of 1548, the thirteen-year-old Princess Elizabeth Tudor was secluded at Cheshunt, England. There she gave birth to a boy, whose father was Thomas Seymour, Elizabeths stepfather. The child was placed in the household of John de Vere, 16th Earl of Oxford and the changeling baby was raised as Edward de Vere, the 17th Earl of Oxford.
Edward de Vere was an acknowledged playwright, poet, theatrical producer, musician, dancer and literary figure of the Elizabethan era. He wrote under several pen names and also under names of living persons.
His most famous pen name was "William Shakespeare."