Bertha of Hereford

She was a daughter of Miles, Earl of Hereford (1097- 24 December 1143) and Sibyl de Neufmarché.

[9] Bertha was a direct descendant, in the maternal line, of Gruffydd ap Llywelyn (1007- 5 August 1063) and Edith (Aldgyth), daughter of Elfgar, Earl of Mercia.

[citation needed] Bertha's father Miles served as Constable to King Stephen of England.

In 1173, Bertha's brothers all having died without issue, she brought the Lordships and castles of Brecknock and Abergavenny, to her husband.

[10] Hay Castle had already passed to her from her mother, Sibyl of Neufmarche in 1165, whence it became part of the de Braose holdings.