Hywel married Mawd Ferch Gruffudd (maid. name 1) in 1179 in 1690468, Glamorgan, Wales. Mawd (daughter of Gruffudd Ap Ifor Bach (maid. name 1) and Mabel Gloucester FITZROBERT (maid. name 1)) was born in 1150 in Llandilo, Carmarthenshire, Wales; died in 1651840, Glamorgan, Wales. [Group Sheet] [Family Chart]

1. Cynwrig ApHywel was born in 1180 in 1690468, Glamorgan, Wales; died in 1280 in Radyr, 1651437, Wales.
2. Iorwerth Ap Hywel was born in 1190 in Meisgyn, Caernarvonshire, Wales.
3. Ieuan Ap Hywel was born in 1195 in Meisgyn, Caernarvonshire, Wales.
4. Ralph Maelog was born in 1203 in Newport, Monmouthshire, England; died in 1214 in Pres, Pierce, Georgia, United States.