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Male William III de Ros Click to view William III de Ros in the family tree

William III was born about 1255.  William III's father was Robert IV de Ros and his mother was Isabel d'Aubigny de Albini.  His paternal grandparents were William I de Ros and Lucia FitzPiers of Brecknock; his maternal grandparents were William d'Aubigny de Albini and Albreda Biseth. He had a brother and two sisters, named Robert V, Isabel and Joan.  He was the oldest of the four children.  He died in 1316.


William III's family with Maud de Vaux

‌William III and Maud were married in a religious ceremony before 1287.  They had three sons and three daughters, named William IV, John, Thomas, Mary, Margaret and Agnes (Anne).

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