John de Vere, 12th Earl of Oxford
15th century English noble
- Born
- 1408
John de Vere, 12th Earl of Oxford, was the son of Richard de Vere, 11th Earl of Oxford, and his second wife, Alice Sergeaux (1386–1452). A Lancastrian loyalist during the latter part of his life, he was convicted of high treason and executed on Tower Hill on 26 February 1462.