Baldwin de Boulers , Lord of Montgomery
Baldwin de was born about 1060 in Haworth Castle, Yorkshire, England.  Baldwin de is no longer alive.

 Sibyl de Falaise
Sibyl de was born about 1090 in Falaise, Clavados, France.

 Maud de Boulers
Maud de was born about 1110 in Haworth Castle, Yorkshire, England.