Polidoro Virgili, commonly latinised as Polydorus Vergilius, or anglicised as Polydore Vergil (or Virgil), and often known as Polydore Vergil of Urbino (c. 1470 – 18 April 1555) was an Italian humanist scholar, historian, priest and diplomat who spent most of his life in England, having moved there in 1502. He is particularly remembered for his works the Proverbiorum libellus (1498), a collection of Latin proverbs; De inventoribus rerum (1499), a history of discoveries and origins; and the Anglica Historia (drafted by 1513; printed 1534), an influential history of England. He has been dubbed the "Father of English History".
Vergil is sometimes referred to in contemporary documents as Polydore Vergil Castellensis or Castellen, and it has sometimes been assumed that he was a kinsman of his patron, Cardinal Adriano Castellesi. However, it is more likely that the alias simply indicates that he was in Castellesi's services.