What Happened in 1343
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- Jan 14 Arnost of Pardubice becomes the first Archbishop of Prague (and the last bishop of Prague)
- Jan 27 Pope Clement VI issues the Bull Unigenitus
- Apr 23 St. George's Night Uprising in Estonia
- Jun 24 Jeanne de Valois, Queen of Navarre, born in Châteauneuf-sur-Loire, France (d. 1373)
- Jan 16 Robert of Anjou, king (Naples), dies
- Oct 12 Reinald II, duke of Gelre, dies