Tractatus de legibus et consuetudinibus regni Anglie
…hand, he is cited as the earliest authority. Spelling variations of the name include Glanvil, Glanvill (the most common), and Glanville. The Scottish Regiam Majestatem was written perhaps in the reign of Robert the Bruce (1306–1329) but not earlier than 1318, as it includes a Scottish statute written in that year…