Editing 1236 (section)

==== Europe ====
* [[June 20]] &ndash; [[Treaty of Kremmen]]: Duke [[Wartislaw III, Duke of Pomerania|Wartislaw III]] recognizes the [[seignory]] of [[Henry Borwin III, Lord of Rostock|Henry Borwin III]], lord of [[Lordship of Rostock|Rostock]], after his successful expedition against Wartislaw, in which he has conquered [[Circipania]], including the cities of [[Gnoien]] and [[Altkalen|Kalen]]. Meanwhile, [[Swietopelk II, Duke of Pomerania]] ("the Great") conquers [[Lands of Schlawe and Stolp|Schlawe and Stolp]], the eastern part of [[Duchy of Pomerania|Pomerania]]. To ease the tensions with [[Margraviate of Brandenburg|Brandenburg]], Wartislaw signs the [[Kremmen]] agreement.
* [[June]] &ndash; The 16-year-old [[Alexander Nevsky]] is elected by the Novgorodians as prince (''[[knyaz]]'') of [[Veliky Novgorod|Novgorod]], beseeching the young Kievan noble to take charge of the city's military affairs.
* [[June 29]] &ndash; [[Siege of Córdoba (1236)|Siege of Córdoba]]: Castilian forces under King [[Ferdinand III of Castile|Ferdinand III]] ("the Saint") capture Muslim [[Córdoba, Spain|Córdoba]] from Emir [[Ibn Hud]], as part of the [[Reconquista]] of the [[Iberian Peninsula]].<ref name=linehan1999b>{{cite book|title=[[The New Cambridge Medieval History]] c.1198-c.1300|year=1999|publisher=Cambridge University Press|location=Cambridge|isbn=0-521-36289-X|pages=668–673|editor-link=David Abulafia|first=Peter|last=Linehan|authorlink1=Peter Linehan|editor=David Abulafia|volume=5|chapter=Chapter 21: Castile, Portugal and Navarre}}</ref>
* [[July]] &ndash; At a diet (princely convention) in [[Piacenza]], Emperor [[Frederick II, Holy Roman Emperor|Frederick II]] proclaims his wish to recover all [[Kingdom of Italy (Holy Roman Empire)|Italy]] for the [[Holy Roman Empire]].<ref>Hywel Williams (2005). ''Cassell's Chronology of World History'', p. 139. {{ISBN|0-304-35730-8}}.</ref>
* [[September 22]] &ndash; [[Battle of Saule]]: The [[Lithuanians]] and [[Semigallians]] defeat the [[Livonian Brothers of the Sword]], at [[Šiauliai]] in [[Lithuania]].