Kurš apprecējās ar Margaret Beauchamp of Bletso?

Margaret Beauchamp (c. 1410 – before 3 June 1482) was the oldest daughter of Sir John Beauchamp of Bletsoe, and his second wife, Edith Stourton. She was the maternal grandmother of Henry VII.

John Beaufort, 1st Duke of Somerset, 3rd Earl of Somerset (25 March 1404 – 27 May 1444) was an English nobleman and military commander during the Hundred Years' War. He was a paternal first cousin of King Henry V and the maternal grandfather of Henry VII.

Lionel de Welles, 6th Baron Welles, KG (c. 1406 – 29 March 1461) was an English peer who served as Lord Lieutenant of Ireland and Joint Deputy of Calais. He was slain fighting on the Lancastrian side at the Battle of Towton, and was attainted on 21 December 1461. As a result of the attainder, his son, Richard Welles, 7th Baron Welles, did not succeed him in the barony of Welles until the attainder was reversed by Parliament in June 1467.