ROBERT DE LEYBURN, a son of Philip, and son and heir of AMY DE TREGOZ. In 1192 he received 100s. from the Sheriff of Kent for doing the King's business. He married Margaret. He was dead in 1199, when the wardship of his heir was granted to Stephen de Thurnham. Margaret, the widow, in 1207 proffered £100 and two palfreys and had licence to marry whom she would. She died circa 1223. [Complete Peerage VII:630, (transcribed by Dave Utzinger)]