Events from the 1280s in England. Incumbents Monarch – Edward I Events 1280 University College, Oxford receives statutes. 1281 Establishment of Rewley Abbey, Oxford, and Appleby Friary. The Council of Lambeth issues the decree Ignorantia sacerdotum lays down the duties of parish priests to teach the laity in religious matters. 1282 21 March – Dafydd ap Gruffydd leads rebellion in Wales. 11 December – the English defeat the Welsh at the Battle of Orewin Bridge. First Trial of the Pyx, a procedure for measuring the standard of minted coins, held. 1283 25 April – the last independent Welsh stronghold, Castell y Bere, falls to the English. 28 June – a parliament of England summoned to assemble at Shrewsbury Abbey to decide the fate of the captured Dafydd ap Gruffydd is the first to include commoners. 3 October – the last ruler of an independent Wales, Prince Dafydd ap Gruffydd, is executed in Shrewsbury, the first prominent person in history to be hanged, drawn and quartered (for the newly created crime of high treason). 5 November – an official of Exeter Cathedral, Walter Lechlade, is murdered in its close in a conspiracy ordered by the Dean, John Pycot, and the city's mayor, Alured de Porta. 1284 3 March – the Statute of Rhuddlan extends English law to Wales. The first "Round Table" tournament held, at Nefyn in north Wales. Peterhouse, the oldest collegiate foundation of the University of Cambridge, is established by Hugh de Balsham, Bishop of Ely. 1285 The writ of Circumspecte Agatis establishes which issues may be tried in ecclesiastical courts. Easter – enactment of the second Statute of Westminster, defining inheritance laws, and containing the clause de donis conditionalibus. September – Statute of Winchester introduces new measures against crime (including the Hue and cry) and re-defines the right to bear arms. 1286 1 January – a storm surge hits the coast of East Anglia and sweeps away much of the town of Dunwich. 5 June – Edward I of England pays homage to Philip IV of France. 1287 February – South England flood, affecting the Cinque Ports: A storm surge destroys the town of Old Winchelsea on Romney Marsh and nearby Broomhill. The course of the nearby River Rother is diverted away from New Romney, which is almost destroyed, ending its role as a port, with the Rother running instead to the sea at Rye, whose prospects as