Richard Fitz-Eustace, Baron of Halton and constable of Chester, m. Albreda, dau. and heir of Robert de Lisours and half sister of Robert de Lacy, and had issue, John, who becoming heir to his uncle, the said Robert de Lacy, assumed the surname of Lacy, and s. his father as constable of Chester, and was ancestor of the Earls of Lincoln of that family; Robert, the hospitaller, that is of the Hospital of St. John of Jerusalem in England; and Roger, surnamed FitzRichard, progenitor ofhe great families of Clavering. [Sir Bernard Burke, Dormant and Extinct Peerages, Burke's Peerage, Ltd., London, 1883, p. 121, Clavering, Barons Clavering, and p. 555, Vesci, Barons Vesci]