Haer married Cynfyn "Hirdref" ap Gruffudd, Arglwydd Nevyn, son of Gruffudd ap Llywarch.
Marriage Information:
Haer also married Bleddyn "Sais", Tywysog Powys, son of Cynfyn ap Gwerystan, Tywysog Powys, and Angharad ferch Maredydd. (Bleddyn "Sais" ap Cynfyn was born about 1025 in Montgomeryshire, Wales and died in 1075.)