Thomas FitzWilliam de Greystoke , Sir
Thomas FitzWilliam de was born about 1190 in Greystoke, Cumberland, England.  He died in 1247.

 Christian de Vipont
Christian de was born about 1202 in Appleby Castle, Westmorland, England.

 Joan de Greystoke
Joan de was born about 1225 in Greystoke, Cumberland, England.  She died after July 1269.

 Thomas de Greystoke
Thomas de was born about 1230 in Morpeth, Northumberland, England.  He died after 1254.

 Isabella FitzThomas
Isabella was born about 1245 in Greystoke, Cumberland, England.