Editing 1263 (section)

==== Europe ====
* July &ndash; [[Scottish–Norwegian War]]: King [[Haakon IV of Norway]] ("the Old") assembles a fleet (some 120 warships), and sets sail to defend the [[Hebrides]], in an attempt to reassert Norwegian sovereignty over the [[Outer Hebrides|Western Isles]] of [[Kingdom of Scotland|Scotland]]. Haakon stops at the [[Isle of Arran]], where in August negotiations are started with the 21-year-old King [[Alexander III of Scotland]]. The talks are prolonged by the Scots until the autumn storms begin.<ref>Helle, Knut (1995). '' Under kirke og kongemakt: 1130-1350'', p. 196. Aschehougs Norgeshistorie. Vol. 3. Aschehoug. {{ISBN|8203220312}}.</ref>
* [[September 12]] &ndash; [[Mindaugas]] (or Mendog), the only Christian king of [[Kingdom of Lithuania|Lithuania]], is assassinated by his cousin [[Treniota]]. The country reverts to [[paganism]] and loses its status as a kingdom. Treniota usurps the throne (until [[1264]]).
* [[October 2]] &ndash; [[Battle of Largs]]: Scottish forces under [[Alexander Stewart, 4th High Steward of Scotland|Alexander Stewart]] rout a Viking invasion force led by Haakon IV at [[Largs]] in [[North Ayrshire]]. The battle is inconclusive. On the morning of [[October 3]], the Norwegians return to collect their dead and burn their beached ships. By the end of October, the Viking fleet reaches [[Orkney]], where Haakon becomes ill and dies at the [[Bishop's Palace, Kirkwall|Bishop's Palace]], on [[December 16]].<ref>McDonald, Russell Andrew (1997). ''The Kingdom of the Isles: Scotland's Western Seaboard, c. 100–c. 1336'', p. 115. Scottish Historical Monographs, Tuckwell Press. {{ISBN|1-898410-85-2}}.</ref>
* December &ndash; [[Magnus VI of Norway|Magnus VI]] ("the Law-mender") succeeds his father Haakon IV as [[Kingdom of Norway (872–1397)|King of Norway]]. The chieftains of the eastern part of [[Iceland]] become the last to pledge fealty to Magnus, bringing a more complete end to the [[Icelandic Commonwealth]] and the [[Age of the Sturlungs]].
* Winter &ndash; [[Reconquista]]: King [[Alfonso X of Castile]] ("the Wise") conquers [[Niebla, Spain|Niebla]] from the Moors, terminating any Muslim presence in the western region of [[Spain]].<ref name=picard2000>{{cite book|last=Picard|first=Christophe|title=Le Portugal musulman (VIIIe-XIIIe siècle. L'Occident d'al-Andalus sous domination islamique|year=2000|publisher=Maisonneuve & Larose|location=Paris|isbn=2-7068-1398-9|page=110}}</ref>
* [[Reconquista]] &ndash; King [[James I of Aragon]] ("the Conqueror") captures [[Crevillent]] from the [[Moors]] and it becomes a part of the [[Kingdom of Valencia]].