Llywelyn the Great – Wikipedia
A pair of notable deaths on this day in history…
1240 – Llywelyn the Great, Welsh prince (b. 1172) https://en.wikipedia.org/wiki/Llywelyn_the_Great
and
1447 – Henry Beaufort, Cardinal, Lord Chancellor of England (b. 1377) https://en.wikipedia.org/wiki/Henry_Beaufort