1066–1284, p. 511. London, UK: Penguin Books. . Edward I (Longshanks) arranges a Round Table event and tournament at Nefyn in Wales. He promises the Welsh that he will provide them with a Prince of Wales. Africa Hafsid forces under Abu Hafs Umar I (half-brother of Abu Ishaq Ibrahim I) reconquer Tunis and reinstall the Hafsid Dynasty as the dominating power in Ifriqiya. This ends the Bedouin rebellion (see 1283) started last year. King Peter III (the Great) takes advantage of the weakness of the Hafsid Dynasty and raids the island of Djerba. Aragonese forces massacre the population and occupy the island. By topic Art and Culture Construction of Beauvais Cathedral is interrupted by a partial collapse of the choir; the event unnerves French masons working in the Gothic style. Jean de Meun, French poet and writer, translates Vegetius' 4th century military treatise De Re Militari from Latin into French. Cities and Towns May 18 – Jönköping in Sweden is granted town privileges by King Magnus III. Education Peterhouse, oldest collegiate foundation of the University of Cambridge in England, is established by Bishop Hugh de Balsham. Health The Al-Mansuri bimaristan (hospital) is completed in Cairo. Markets The Republic of Venice begins coining the ducat, a gold coin that is to become the standard of European coinage, for the following 600 years. Births April 25 – Edward II (Caernarfon), king of England (d. 1327) April 26 – Alice de Toeni, English noblewoman (d. 1325) Delphine of Glandèves, French noblewoman (d. 1358) Edward (the Liberal), Savoyan nobleman (d. 1329) John I, Dutch nobleman (House of Holland) (d. 1299) Piers Gaveston, English nobleman and knight (d. 1312) Thomas de Brus, Scottish nobleman and knight (d. 1307) Wernher von Homberg, Swiss knight and poet (d. 1320) Yu Qin, Chinese official, geographer and writer (d. 1333) Deaths January 18 – Qonqurtai, Mongol nobleman and viceroy January 28 – Alexander, Scottish prince and heir (b. 1264) February 12 – Humphrey of Montfort, Outremer nobleman March 24 – Hugh III (the Great), king of Cyprus (b. 1235) April 4 – Alfonso X (the Wise), king of Castile (b. 1221) April 6 – Peter I, French nobleman and prince (b. 1251) April 9 – Adelaide of Holland, Dutch noblewoman (b. 1230) April 15 – Jordan of Osnabrück, German political writer April 20 – Hōjō Tokimune, Japanese nobleman (b. 1251) July 30 – Sturla Þórðarson, Icelandic chieftain (b. 1214)