Iorwerth Vychan Ap Iorwerth Ap Heilyn

Iorwerth Vychan's father was Iorwerth Ap Heilyn Ap Cyfnerth Ap Morgenau Ynad.  His paternal grandfather was Heilyn Ap Cyfnerth Ap Morgenau Ynad.  He was an only child.  Iorwerth Vychan is no longer alive.

He had a biological son named Howel.