Editing 1263 (section)

==== England ====
* April &ndash; [[Simon de Montfort, 6th Earl of Leicester]], newly returned from exile, takes control of southern England.<ref name="CBH1263" /> In early May he summons a meeting of rebel barons at Oxford.
* [[July 16]] &ndash; Rebels occupy London.<ref name="CBH1263" />
* Baronial forces led by [[Robert de Ferrers, 6th Earl of Derby|Robert de Ferrers]] and [[Henry de Montfort]] lay siege to [[Worcester, England|Worcester]]. The attackers finally enter the city and are allowed to sack it. They kill most of the Jewish community as part of the [[History of the Jews in England (1066–1290)#Targeting of Jews during the conflict with the Barons|targeting of Jews during the conflict with the Barons]] by allies of de Montfort.<ref>Willis-Bund, J W; Page, William, eds. (1924). "The city of Worcester: Introduction and borough". ''A History of the County of Worcester: Volume 4''. London: British History Online, pp. 376–390. Retrieved: 20 May 2018.</ref>
* [[October 2]] &ndash; King [[Henry III of England]] travels to [[Boulogne-sur-Mer|Boulogne]] for an attempt to broker peace with his barons by King [[Louis IX of France]].<ref name="CBH1263">{{cite book|last1=Palmer|first1=Alan|author2=Veronica|year=1992|title=The Chronology of British History|publisher=Century Ltd|location=London|pages=86–88|isbn=0-7126-5616-2}}</ref>