Sir Richard de Clare, Earl of Hereford and Gloucester, born Aug. 1, 1222, died July 15, 1262, married Feb., 1237, Maud de Lacie, daughter of Sir John de Lacie, Surety for the Magna Charta, Earl of Lincoln, 7th Baron Halton, and hereditary Constable of Chester, and his wife, Margaret, only daughter and heiress of Robert de Quincey, and his wife, Hawise, daughter of Hugh de Keveliock, 5th Earl of Chester, son of Saire de Quincey, Surety for the Magna Charta, and his wife, Margaret de Bellomont, descended from Henry I, King of France.
Source: Browning's Magna Charta Barons and Their Descendants, pp. 94-96, 122-3, 305.