Robert de Courtenay gained the title of Lord of Sutton Courtenay [feudal baron]. He gained the title of Lord of Okehampton [feudal baron]. In 1215 he was granted the right to coin tin in Devon and Cornwall, by King John. On 31 July 1219 he inherited the great Honour of Okehampton from his mother, amounting to 92 kngihts' fees. He held the office of Castellan of Oxford. He held the office of Sheriff of Devon. He was Sheriff of Oxfordshire. He held the office of Castellan of Exeter.