William (Sir) FITZWILLIAM
William (Sir) was born about 1145 in Sproatsborough, Yorkshire, England.

 Albreda (Aubrey) de LACY
Albreda (Aubrey) de was born about 1150 in Holton, Yorkshire,England.  She died about 1183 in Yorkshire, England.

 Thomas (Sir) FITZWILLIAM
Thomas (Sir) was born about 1175 in Yorkshire, England.