William De Ros
William was born about 1196 in Helmsley, Yorkshire, England.  He died after 1246.

 Lucia Fitzpiers
Lucia was born about 1192 in Forest Of Dean, Gloucestershire, England.  She died after 1266.

 Lucy De Ros
Lucy was born about 1230 in Helmsley, Yorkshire, England.  She died after 1279.

 William De Ros
William was born about 1244 in Ingmanthorpe, England.  He died before May 28th, 1310.