Children by Tangwystl Goch, (died c. 1198): Gruffudd ap Llywelyn ap Iorwerth, became a hostage of King John; Gwenllian, married William de Lacy, son of Hugh de Lacy, Lord of Meath.
Children by Tangwystl Goch, (died c. 1198): Gruffudd ap Llywelyn ap Iorwerth, became a hostage of King John; Gwenllian, married William de Lacy, son of Hugh de Lacy, Lord of Meath.