William De Ros
William was born in 1192 in Helmsley, , Yorkshire, England.  He died at the age of 72 in 1264 in Kirkham, , , England.

 Lucia Fitzpiers
Lucia was born in 1214 in Forest Dean, , Gloucestershire, England.  She died at the age of 52 in 1266 in Yorkshire William, , Delaware, USA.

 Robert De Ros
Robert was born in 1223 in Helmsley, , Yorkshire, England.  He died at the age of 62 on May 17th, 1285 in Helmsley, North Riding, Yorkshire, England.