The two sons of Owen Tudor, Edmund and Jasper were made Earls. Edmund became the Earl of Richmond and Jasper became the Earl of Pembroke.

After the death of Edmund Tudor, his brother, Jasper Tudor Earl of Pembroke, moved Margaret Beaufort to Pembroke Castle. Margaret was the wife of Edmund Tudor and expecting their first child, Henry Tudor, the future King of England. ^[1]

King Louis XI of France provided Jasper Tudor, the Earl of Pembroke, with three ships and fifty soldiers to invade Wales. The small invasion force planned to gain support against Edward IV and help the Lancastrian garrison trapped at Harlech Castle. The castle was surrounded by the English so Pembroke attacked and occupied Denbigh gaining many supporters. Lord Herbert was dispatched to deal with the threat and defeated Pembroke who managed to escape.

The Earl of Warwick landed at Dartmouth in Devon accompanied by the Lancastrian Earl of Oxford and Jasper Tudor, the half-brother of Henry VI. Edward was in the north at the time of Warwick's return and was turned upon by John Neville, Warwick's brother. Although John Neville had accepted Edward as King, Edward had removed John's title of Earl of Northumberland earlier in the year and given it to the Percys. John Neville advanced on Edward's position with a force much larger. ^[2]

Along with his uncle Jasper Tudor, Henry flee England after the defeat of the Lancastrians and death of King Henry VI. They went to Brittany where they were given refuge.

Henry Tudor, the future king of England Henry VII, landed at Milford Haven in Wales avoiding the south coast which was more heavily defended and made his way north. He was given money by Charles VIII of France to pay for soldiers and ships for the invasion. His claim to the throne of England was through his mother whose great-grandfather was John of Gaunt, the son of King Edward III. He was accompanied by his uncle Japser Tudor. ^[3]

King Richard III was killed at the Battle of Bosworth and Henry Tudor was proclaimed King of England. ^[4]