General Notes

Piers de Ros [a] b abt 1086, of Holderness, Yorkshire, England, d bef 1130. He md Adeline Espec [b] abt 1105, daughter of Sir Walter Espec, Lord of Helmsley. She was b abt 1092, of Helmsley, Yorkshire, England, d bef 1157/58.
Known children of Piers de Ros and Adeline Espec were:

Everard de Ros b abt 1114, Yorkshire, England, d bef 1153; md Eustache.
Robert de Ros b abt 1120.
His parentage is unknown, but he probably derived his surname from Ros in Holderness, Yorkshire. He was steward (dapifer) of the Count of Aumale, lord of Holderness. Piers gave land in Gilling near Helmsley, and the church, to St. Mary's Abbey in Yorkshire.