Editing 1091 (section)

==== Europe ====
* Spring &ndash; King [[Stephen II of Croatia|Stephen II]], the last member of the [[Trpimirović dynasty]], dies without leaving an heir after a 2-year reign. War and unrest breaks out in [[Kingdom of Croatia (925–1102)|Croatia]] afterwards. King [[Ladislaus I of Hungary]], on instigation of his sister, Queen [[Helena of Hungary, Queen of Croatia|Helena]], intervenes in the conflict and occupies Croatia. He proclaims himself king, but is contested by the Croatian nobleman [[Petar Snačić]].
* [[February]] &ndash; [[Norman conquest of southern Italy|Norman conquest of Sicily]]: The [[Normans]] conquer [[Noto]] and complete the 30-year-long conquest of [[Sicily]] from the Moorish rulers. Duke [[Roger Borsa]] (a son of [[Robert Guiscard]]) surrenders his share in the castles of [[Calabria]], and receives his inheritance of [[Palermo]]. He grants charters to various towns and encourages [[urban planning]] in [[County of Apulia and Calabria|Apulia and Calabria]]. 
* Summer &ndash; The [[Norman invasion of Malta]]: A Norman fleet led by Count [[Roger I of Sicily]] ("Bosso") arrives in [[Malta]]. Roger disembarks his army, and besieges the island's capital Medina (modern-day [[Mdina]]). The inhabitants negotiate peace terms (by promising to pay an annual [[tribute]]) and swear an oath of loyalty to Roger. On the way back, the Normans sack the island [[Gozo]].
* [[July]] &ndash; The [[Abbadid dynasty]] ruling in [[Al-Andalus]] (modern [[Spain]]) falls when [[Almoravid dynasty|Almoravid]] forces storm [[Seville]]. Confronted with this threat, Emir [[Taifa of Badajoz#Emirs of Badajoz|Muhammad ibn Abu Bakr Muhammad al-Aftas]] of [[Badajoz]] obtains the support of King [[Alfonso VI of León and Castile|Alfonso VI]] ("the Brave") of [[Kingdom of Castile|Castile]], in exchange for the Moorish positions on the river [[Tagus]] ([[Sintra]], [[Santarém, Portugal|Santarém]] and [[Lisbon]]).<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=109}}</ref>