Birth of Henry Tudor, son of Edmund Tudor, 1st Earl of Richmond, and Margaret Beaufort at Pembroke Castle, Wales.  Edmund Tudor was the son of Owen Tudor and Henry V’s widow Catherine of Valois (there is no documentation that they were married).  Margaret Beaufort, was a great-granddaughter of John of Gaunt (third son of Edward III) and his third wife and previous mistress Katherine Swynford.   The children of this relationship, the Beauforts, were disinherited by Letters Patent of King Henry IV from any claim to the throne.

Tags: Henry Tudor, Margaret Beaufort