Editing 1073 (section)

==== Europe ====
* [[May 25]] &ndash; King [[Sancho IV of Pamplona|Sancho IV]] of [[Kingdom of Navarre|Navarre]] and [[Ahmad al-Muqtadir]], Muslim ruler of the [[Taifa of Zaragoza]], conclude an alliance by treaty.<ref name="Fletcher Reconquista">{{cite journal|last=Fletcher|first=R. A.|title=Reconquest and Crusade in Spain c. 1050-1150|journal=Transactions of the Royal Historical Society|year=1987|volume=37|series=5|pages=31–47 [35]|jstor=3679149}}</ref>
* [[October 14]] &ndash; The [[Judicate of Arborea]] (one of the four independent kingdoms in [[Sardinian medieval kingdoms|Sardinia]]) is recognised by Pope [[Pope Gregory VII|Gregory VII]].
* [[Ebles II of Roucy]] leads a French army in [[Spain]], to support King [[Sancho Ramírez|Sancho V]] of [[Kingdom of Aragon|Aragon]] in his struggle against his Muslim neighbors.<ref name="cruzadas aragon">{{cite journal |last=Canellas |first=Angel |title=Las Cruzadas de Aragon en el Siglo XI|journal=Argensola: Revista de Ciencias Sociales del Instituto de Estudios Altoaragoneses |issn=0518-4088 |volume=7 |year=1951 |url=http://dialnet.unirioja.es/servlet/fichero_articulo?codigo=2110493&orden=81753 |access-date=February 22, 2012 |archive-url=https://web.archive.org/web/20140715001600/http://dialnet.unirioja.es/servlet/fichero_articulo?codigo=2110493&orden=81753 |archive-date=July 15, 2014 |url-status=live }}</ref>
* [[Sviatoslav II of Kiev|Sviatoslav II]] and [[Vsevolod I of Kiev|Vsevolod I]] unite the Kievan forces and expel their brother [[Iziaslav I of Kiev|Iziaslav I]]. Sviatoslav II becomes Grand Prince of [[Kyiv]].