Editing 1551 (section)

=== April&ndash;June ===
* [[April 4]] &ndash; [[Ferdinand I, Holy Roman Emperor]], issues an edict to reduce tensions among the three major ethnic groups in the Kingdom of Hungary, with an administration to have equal representation of for ethnic Hungarians, Slovaks and Germans.<ref>Martin Štefánik – Ján Lukačka et al. 2010, Lexikón stredovekých miest na Slovensku, Historický ústav SAV, Bratislava, 2010, p. 532-534, {{ISBN|978-80-89396-11-5}}. http://forumhistoriae.sk/-/lexikon-stredovekych-miest-na-slovensku {{Webarchive|url=https://web.archive.org/web/20170326010518/http://forumhistoriae.sk/-/lexikon-stredovekych-miest-na-slovensku |date=March 26, 2017 }}</ref>
* [[May 1]] &ndash; The [[Council of Trent]] reconvenes by order of [[Pope Julius III]] after having been adjourned on September 17, [[1549]].<ref>{{cite web|url= http://www.ccel.org/s/schaff/encyc/encyc12/htm/ii.ii.htm |title=Council of Trent|author=Trenkle, Franz Sales|date=March 3, 2003|access-date=May 24, 2018}}</ref>
* [[May 12]] &ndash; The [[National University of San Marcos]] is founded in [[Lima]] in the [[Viceroyalty of Peru]], being the first officially established university in the [[Americas]].<ref>{{Cite web |author=National Geographic |title=1551: Oldest University in Americas Established |url=http://ipod-ngsta.test.nationalgeographic.org/thisday/may12/oldest-university-americas-established |access-date=January 18, 2018 |archive-date=May 20, 2020 |archive-url=https://web.archive.org/web/20200520100039/http://ipod-ngsta.test.nationalgeographic.org/thisday/may12/oldest-university-americas-established/ |url-status=dead }}</ref>
* [[May 27]] &ndash; [[Italian War of 1551–1559]]: A defensive alliance, placing the [[Duchy of Parma and Piacenza]] under the protection of [[France]], is signed between representatives of King [[Henry II of France]] and [[Ottavio Farnese, Duke of Parma]], placing Parma under French protection. 
* [[May 30]] &ndash; [[Ilie II Rareș]], Ruler of Moldavia since 1556, is forced by the Ottoman Empire to abdicate the throne.<ref name=Unsprung>{{cite journal | url=https://www.jstor.org/stable/23030256 | jstor=23030256 | title=Über den Ursprung der rumänischen Bojarenfamilien | last1=Fischer | first1=Emil | journal=Zeitschrift für Ethnologie | year=1908 | volume=40 | issue=3 | pages=343–361 }}</ref>
* [[June 11]] &ndash; With the approval of the Ottoman Sultan [[Suleiman the Magnificent]], Prince Ilie's brother [[Ștefan VI Rareș]] becomes the new [[List of monarchs of Moldavia|Prince of Moldavia]].<ref name=Unsprung/>
* [[June 27]] &ndash; The [[Edict of Châteaubriant]] is promulgated in France by King Henri II, providing for an increasingly severe series of measures in the Roman Catholic Kingdom to be taken against Protestants, considered to be [[heresy|heretics]].<ref>Raymond A. Mentzer, Jr., "The Legal Response to Heresy in Languedoc, 1500-1560" ''Sixteenth Century Journal'' '''4'''.1 (April 1973:19-30) p. 22.</ref>