Who dated Jasper Tudor?

Jasper Tudor, Duke of Bedford (c. November 1431 – 21 December 1495) was the uncle of King Henry VII of England and a leading architect of his nephew's successful accession to the throne in 1485. He was a member of the Tudor family of Penmynydd.

Jasper Tudor's coat of arms, granted to him by his maternal half-brother, King Henry VI, quarters the three lilies of France with the three lions of England, with the addition of a bordure azure with martlets or (that is, a blue border featuring golden martlets).