Gruffudd ap Maredudd ap Bleddyn -1128 (d. 1128) Parents Maredudd ap Bleddyn Hunydd ferch Eunydd ap Gwerngwy Children Margred ferch Gruffudd Rhirid Foel ap Gruffudd ap Maredudd ap Bleddyn ap Cynfyn Owain Cyfeiliog Siblings Hywel ap Maredudd ap Bleddyn Madog ap Maredudd Dafydd ap Maredudd ap Bleddyn ap Cynfyn Dyddgu ferch Maredudd ap Bleddyn ap Cynfyn Iorwerth Goch ap Maredudd Angharad ferch Maredudd ap Bleddyn Iorwerth Gôch ap Maredudd ap Bleddyn ap Cynfyn