A charter dated to [1145/54] records the dowry granted by “Robertus de Brus” to “Agathe filie sue” on her marriage to “Radulfo Ribaldi filio”, witnessed by “…Petro de Brus, Ernaldo de Perci…Herveo Ribaldi filio…”. A mid-15th century manuscript lists "Radulphum, Heruey…dictum Tailbois, Raynaldum…dictum Taylboys, Willelmum…dictum Tailbois" as the sons of "Ribaldus frater comitis" and his wife "Beatrix uxor Ribaldi". 1
Ralph married Agatha DE BRUS, daughter of Robert I DE BRUS of Skelton and Agnes PAYNELL.
1 Foundations for Medieval Genealogy, Medlands, Ralph.