Iorwerth Drwyndwn 
He had a biological son named the Great.
-
Children
Llywelyn ap Iorwerth, Prince of North Wales
Llywelyn, known as the Great, was born in 1173. He died at the age of 67 in 1240.
Iorwerth Drwyndwn Llywelyn ap Iorwerth, Prince of North Wales