Editing 849 (section)

==== Europe ====

* Summer &ndash; [[Battle of Ostia]]: A [[Saracen]] Arab fleet from [[Sardinia]] sets sail towards [[Rome]]. In response, [[Pope Leo IV]] forms a coalition of maritime Italian cities, including [[Duchy of Naples|Naples]], [[Republic of Amalfi|Amalfi]] and [[Duchy of Gaeta|Gaeta]], led by Admiral [[Caesar of Naples|Caesar]] — which is assembled off the re-[[Fortification|fortified]] port of [[Ostia (Rome)|Ostia]] — and repels the Saracen [[Piracy|marauder]]s. Their navy is scattered, resulting in many sunken vessels. Rome is saved from plunder and the expansion of the [[Aghlabids]].<ref>{{cite book|last=Benvenuti|first=Gino|title=Le Repubbliche Marinare. Amalfi, Pisa, Genova e Venezia|year=1985|publisher=Newton & Compton Editori|location=Rome|isbn=88-8289-529-7|page=15}}</ref> 
* Frankish forces under King [[Charles the Bald]] invade southern [[France]], and conquer the territory of [[County of Toulouse|Toulouse]]. He appoints [[Fredelo, Count of Toulouse|Fredelo]] as count (''[[Count|comté]]'') of Toulouse, who founds the [[Rouergue]] dynasty. [[Aquitaine]] is submitted to the [[West Francia|West Frankish Kingdom]].