1343 CE
St. George's Night Uprising: The "Four Estonian kings" are murdered, at the negotiations with the Livonian Order. Magnus IV of Sweden abdicates from the throne of Norway, in favor of his son Haakon VI of Norway. However, Haakon is still a minor, allowing Magnus to remain de facto ruler. A naval league is formed between the Pope, the Republic of Venice, the Knights Hospitaller and the Kingdom of Cyprus, to prepare the Smyrniote Crusades.
Geopolitics & Diplomacy
- August 15 – Magnus IV of Sweden abdicates from the throne of Norway, in favor of his son Haakon VI of Norway. However, Haakon is still a minor, allowing Magnus to remain de facto ruler.source
Conflict & Security
Religion & Belief
- January 14 – Arnošt of Pardubice becomes the last bishop of Prague and, subsequently, the first Archbishop of Prague.source
- January 27 – Pope Clement VI issues his bull Unigenitus, defining the doctrine of "The Treasury of Merits" or "The Treasury of the Church" as the basis for the issuance of indulgences by the Catholic Church.source
- August 31 – A naval league is formed between the Pope, the Republic of Venice, the Knights Hospitaller and the Kingdom of Cyprus, to prepare the Smyrniote Crusades.source
Climate & Environment
- November 25 – A tsunami, caused by an earthquake, devastates the Maritime Republic of Amalfi, among other places.source
Births
- December 19 – William I, Margrave of Meissen (d. 1407)source
- Thomas Percy, 1st Earl of Worcester, English rebel (d. 1403)source
- Constance of Aragon, queen consort of Sicily (d. 1363)source
- Alexander Stewart, Earl of Buchan, Scottish ruler (d. 1405)source
- Paolo Alboino della Scala, lord of Verona (d. 1375)source
- Emperor Chōkei of Japan (d. 1394)source
- Nang Keo Phimpha, queen of Lan Xang (d. 1438)source
- Tommaso Mocenigo, doge of Venice (d. 1423)source
- Geoffrey Chaucer, English poet (approximate date) (d. 1400)source
Deaths
- January 20 – Robert of Naples (b. 1276)source
- May 29 – Francesco I Manfredi, lord of Faenzasource
- June 22 – Aimone, Count of Savoy (b. 1291)source
- June 23 – Giacomo Gaetani Stefaneschi, Italian cardinal (b. c. 1270)source
- September 16 – Philip III of Navarre (b. 1306)source
- December 15 – Hasan Kucek, Chobanid prince (b. c. 1319)source
- Sir Ulick Burke, Irish noblemansource
- Veera Ballala III, ruler of the Hoysala Empire (b. 1291)source
- Anne of Austria, Duchess of Bavaria (b. 1318)source