Editing 1121 (section)

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==== Religion ====
* Spring &ndash; [[Peter Abelard]], a French theologian and philosopher, is condemned and charged with the heresy of [[Sabellianism|Sabellius]] in a synod at [[Soissons]].<ref>{{cite book | page=12 | title=Seven Ages of Paris | first=Alistair | last=Horne | publisher=Vintage Books | place=New York | year=2002 | isbn=1-4000-3446-9}}</ref> Abelard writes ''[[Sic et Non]]''.
* [[April 22]] &ndash; Antipope [[Antipope Gregory VIII|Gregory VIII]] (supported by  Emperor [[Henry V, Holy Roman Emperor|Henry V]]) is arrested by papal troops at [[Sutri]]. He is taken to [[Rome]] and imprisoned in the [[Septizonium]].
* [[December 25]] ([[Christmas|Christmas Day]]) &ndash; The [[Praemonstratensians|Praemonstratensian]] Order (Norbertines) is formed, when a group of canons make solemn vows at [[Prémontré]].<ref>{{cite web|title=History of the Norbertines and St. Norbert|publisher=St Michael's Abbey|location=Orange County, California|url=http://www.stmichaelsabbey.com/abbey/index.php?option=com_content&view=article&id=54&Itemid=63|access-date=2013-07-12|archive-url=https://web.archive.org/web/20131006205325/http://www.stmichaelsabbey.com/abbey/index.php?option=com_content&view=article&id=54&Itemid=63|archive-date=October 6, 2013|url-status=dead|df=mdy-all}}</ref>
* Henry I founds [[Reading Abbey]] in [[Kingdom of England|England]]. The [[Benedictines|Cluniac Order]] populates the abbey.
* The third and largest church is completed at [[Cluny Abbey]] (modern [[France]]).<ref>{{cite book|first=Ian|last=Sutton|title=Architecture, from Ancient Greece to the Present|location=London|publisher=Thames & Hudson|year=1999|isbn=978-0-500-20316-3|url-access=registration|url=https://archive.org/details/westernarchitect00sutt}}</ref>
* [[L'Aumône Abbey]] is founded by Count [[Theobald II, Count of Champagne|Theobald IV of Blois]] at [[Loir-et-Cher]].<ref name=Santoro>{{cite book|last1=Santoro|first1=Nicholas J.|title=Mary In Our Life: Atlas of the Names and Titles of Mary, The Mother of Jesus, and Their Place in Marian Devotion|date=2011|publisher=University|location=Bloomington|page=195}}</ref></onlyinclude>