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

 Lucy Fitz Piers
Lucy was born about 1250 in , , , Wales.  She died after 1266.  She was buried after 1266.

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

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

 Robert De Ros Sir
Robert was born in Helmsley, , , England.  He died on May 17th, 1285 in , , , England.  He was buried in 1285 in , , , England.