Ieuan married Margri Griffith about 1600 in Walton, Pembrokeshire, Wales. Margri (daughter of Richard Gruffydd Pengruffwnd Griffing and Jowan David, daughter of Richard Gruffydd Pengruffwnd Griffing and Jowan David) was born about 1579 in Walton, Pembrokeshire, Wales; died in Deceased. [Group Sheet] [Family Chart]