In the family of "Randle le Roter, Lord of Thornton, son and heir, ob. ante 28 Hen. III" and "Amicia, daughter of Richard de Kingsley, and sister and coheir of Randle his son, living a widow 28th Hen. III" is listed "Sir Peter le Roter de Thornton, knt. ob. 8 Edw. I" who married "Matilda, daughter of Richard, son of William le Clerc, of Chester."