In the family of "Philip de Egerton, son and heir [of David de Malpas], sheriff of Cheshire, 23 and 24 Edw. I" and "Margaret, daughter of Richard de Wrenbury, by Catherine his wife, by deed s. d." is listed "David de Egerton, eldest son and heir, sheriff of Cheshire 7 Edw. III" who married "Isabella, daughter of Richard de Fulleshurst, lord of Crewe."