Family/Spouse: Iorwerth, PRINCE OF WALES Llewelyn Ap. Llewelyn (son of Owain, Iorwerth "Drwyndwn" Ap and Madog, Margred Verch) was born in 1173 in Aberffraw Castle, Caernarvonshire, Wales; died on 11 Apr 1240 in Aberconwy, Arllechwedd Isaf, Caernarvonshire, Wales. [Group Sheet] [Family Chart]