Llywelyn yr Ail - Llywelyn the Last

Dydd Llewelyn yr Ail - 11th December

Llywelyn ap Gruffydd or Llywelyn Ein Llyw Olaf (c. 1223 – December 11, 1282)—meaning Llywelyn, Our Last Leader—was the last prince of an independent Wales before its conquest by Edward I of England. He is sometimes called Llywelyn III of Gwynedd or Llywelyn II of Wales.

http://en.wikipedia.org/wiki/Llywelyn_the_Last