|Centuries:||13th century – 14th century – 15th century|
|Decades:||1310s 1320s 1330s – 1340s – 1350s 1360s 1370s|
|Years:||1340 1341 1342 – 1343 – 1344 1345 1346|
- Magnus II of Sweden is no longer king of Norway, and his son Haakon VI of Norway becomes king. However Haakon is still very young, so Magnus makes most of his decisions.
- January 27, Pope Clement VI creates his Bull Unigenitus.
- The personal union between Sweden and Norway ends.
- Edward, the Black Prince becomes the Prince of Wales.