Year 1347 (MCCCXLVII) was a common year starting on Monday (link will display the full calendar) of the Julian calendar, and a common year starting on Sunday (link will display the full calendar) of the Proleptic Gregorian calendar. Events January–December January 26 – Charles University in Prague is founded by a bull issued by Pope Clement VI at the request of Charles I, King of Bohemia. February 2 – The Byzantine civil war of 1341–1347 between John VI Kantakouzenos and the regency for John V Palaiologos ends with Kantakouzenos entering Constantinople. April – The Knights Hospitaller defeat a Turkish fleet, and sink 100 ships off Imbros. May The agreement reorganizing the Byzantine Empire's affairs is finalized, as Anna of Savoy's son John V Palaiologos marries Kantakouzenos' 15-year-old daughter Helena. Genoese ships fleeing the 1331 Black Death plague in Theodosia stop in Constantinople, contaminating the city. May 20 – Cola di Rienzo, a Roman commoner, declares himself Emperor of Rome, in response to years of baronial power struggles. August 2 – The Islamic Bahmani Kingdom is established on the Indian subcontinent. September – Hundred Years' War: The English win the city of Calais. September 1 – The Black Death reaches the French port city of Marseilles. October – Ships arrive in the Sicilian city of Messina, carrying people afflicted by the Black Plague onboard. November Pope Clement VI unites several of Rome's upper-class nobility, who drive Cola di Rienzo out of the city. King Phillip of France meets with the Estates General to ask for funds to further the war effort against the English. November 1 – The Black Death spreads to Aix-en-Provence in France. December – Plague hits the island of Majorca. December 24 – Pembroke College in the University of Cambridge, England, is founded by Marie de St Pol, Countess of Pembroke, as the Hall of Valence Marie. December 25 – The first cases of the plague are recorded in the city of Split, in Croatia. December 27 – To fund military operations in Corsica, the Republic of Genoa has to borrow at 20%, from an association of creditors known as the Compera nuova acquisitionis Corsicæ. Asia Western Asia The Mamluk Empire is hit by the plague in the autumn. Baghdad is hit in the same year. South Asia After years of resistance against the Delhi Sultan Muhammad bin Tughluq, the Bahmani Kingdom, a Muslim Sultanate in Deccan, was