Year 1282 (MCCLXXXII) was a common year starting on Thursday (link will display the full calendar) of the Julian calendar. Events By place Europe March – Welsh forces under Prince Dafydd ap Gruffydd, brother of Llywelyn ap Gruffudd, attack and take control of Hawarden Castle. The garrison is massacred and Constable Roger de Clifford is taken prisoner. Llywelyn who has sworn fealty to King Edward I (Longshanks), joins Dafydd in his revolt against the English. Their actions lead to the final English conquest of Wales, by Edward. March 30 – War of the Sicilian Vespers: A group of Sicilian conspirators begins an uprising against the rule of King Charles I; over the next six weeks, thousands of French are killed. The rebellion forces Charles to abandon the Ninth Crusade, while still en route to the target city of Constantinople and allows King Peter III (the Great) to take over rule of the island from Charles (which in turn leads to Peter's excommunication by Pope Martin IV). May 1 – Battle of Forlì: A French expeditionary army under Jean d'Eppe launches an assault on Forlì and breaches the outer wall. While they plunder the suburbs, Guido I da Montefeltro sends a small force out the gate on the opposite side of the city. In an ambush, Guelph and Ghibelline forces defeat the main army of d'Eppe, who is forced to retreat to Faenza. He requests Martin IV for more reinforcements, but this is refused. Summer – An Aragonese expeditionary army under Peter III lands in North Africa in Collo, in proclaimed support of a rebellion of the governor of Constantine, Ibn Wazir. The revolt is suppressed by Abu Ishaq Ibrahim I, ruler of the Hafsid Sultanate. Peter, wary of the situation in Sicily, sails off and fails to take advantage of the state of rebellion in North Africa. Ibrahim stabilizes his power and styles himself emir of the sultanate. June – The 24-year-old Prince Sancho, heir to the throne of Castile, assembles a coalition of nobles and starts a massive rebellion against his father, King Alfonso X (the Wise). He dispatched his brothers into the realm to claim strategically important cities and castles. Only the cities of Seville, Murcia, and Badajoz remain loyal to Alfonso, who becomes isolated politically and abandoned by most of his family. June 17 – Battle of Llandeilo Fawr: English forces led by Gilbert de Clare are