Editing 1509 (section)

=== April&ndash;June ===
* [[April 7]] &ndash; The [[Kingdom of France]] declares war on the [[Republic of Venice]].<ref name="War of the League of Cambrai">{{cite web |last1=J. |first1=Rickard |title=War of the League of Cambrai, 1508-1510 |url=http://www.historyofwar.org/articles/wars_league_cambrai.html |website=historyofwar.org |access-date=26 August 2014}}</ref>
* [[April 15]] &ndash; The French army under the command of [[Louis XII of France|Louis XII]] leaves [[Milan]] to invade Venetian territory. Part of the [[War of the League of Cambrai]] and the [[Italian Wars]].<ref name="Italianwars">Michael Mallett and Christine Shaw, ''The Italian Wars:1494–1559'', (Pearson, 2012), 89.</ref>
* [[April 21]] &ndash; [[Henry VIII of England|Henry VIII]] becomes King of [[Kingdom of England|England]] on the death of his father, [[Henry VII of England|Henry VII]].<ref>{{cite book |last1=Cheney |first1=C. R. |last2=Cheney |first2=Christopher Robert |last3=Jones |first3=Michael |title=A Handbook of Dates: For Students of British History |date=2000 |publisher=Cambridge University Press |isbn=9780521778459 |pages=37–38 |url=https://books.google.com/books?id=9_Fakx-flCkC&pg=PA37|language=en}}</ref>
* [[April 27]] &ndash; [[Pope Julius II]] places Venice under [[Interdict (Catholic canon law)|interdict]] and [[excommunication]] for refusing to cede part of [[Romagna]] to papal control.<ref>{{cite web |title=On April 27, 1509, Pope Julius II excommunicated the... |url=https://www.chicagotribune.com/2004/04/27/on-april-27-1509-pope-julius-ii/ |website=tribunedigital-chicagotribune |date=April 27, 2004 |access-date=19 June 2018 |language=en}}</ref>
* [[May 2]] &ndash; [[Juan Ponce de León]] obtains authorization to bring his family from [[Spanish Empire|Spain]] to his home in the [[Casa de Contratación]] in [[Caparra Archaeological Site|Caparra]], [[Puerto Rico]].<ref>{{Cite web |last=Tió |first=Aurelio |date=1971 |title=La Primera Puertorriqueña (Boletín de la Academia Puertorriqueña de la Historia). |url=http://dspace.cai.sg.inter.edu/xmlui/bitstream/handle/123456789/16051/025.2.7.2.pdf?sequence=1}}</ref>
* [[May 9]]
** The French army under the command of Louis XII crosses the [[Adda River]] at [[Cassano d'Adda]].<ref name="Italianwars" />
** The Venetians, encamped around the town of [[Treviglio]], move south towards the [[Po River]] in search of better positions.<ref name="Italianwars" />
* [[May 14]] &ndash; [[Battle of Agnadello]]: French forces defeat the Venetians. The League of Cambrai occupies Venice's [[Domini di Terraferma|mainland territories]].<ref name="Italianwars" />
* [[June 11]]
** [[Henry VIII of England]] marries [[Catherine of Aragon]].<ref>{{cite book|author=David Starkey|title=Henry VIII: A European Court in England|url=https://books.google.com/books?id=8xkTAQAAIAAJ|year=1991|publisher=Cross River Press|isbn=978-1-55859-241-4|page=26}}</ref>
** [[Luca Pacioli]]'s ''[[De divina proportione]]'', concerning the [[golden ratio]], is published in [[Republic of Venice|Venice]], with illustrations by [[Leonardo da Vinci]].<ref name="Golden Ratio Luca Pacioli">{{Cite web|url = http://www-history.mcs.st-and.ac.uk/Biographies/Pacioli.html|title = Luca Pacioli|website = School of Mathematics and Statistics|publisher = [[University of St Andrews]]|last1 = O'Connor|first1 = J J|last2 = Robertson|first2 = E F|date = July 1999|access-date = 15 January 2015}}</ref>
* [[June 19]] &ndash; [[Brasenose College, Oxford]], is founded by a lawyer, Sir [[Richard Sutton (lawyer)|Richard Sutton]], of Prestbury, Cheshire, and the Bishop of Lincoln, [[William Smyth]].<ref name="A History of Brasenose">{{cite web |title=A History of Brasenose |url=https://www.bnc.ox.ac.uk/about-brasenose/history/archives/history |website=bnc.ox.ac.uk |access-date=23 March 2022}}</ref>
* [[June 24]] &ndash; King [[Henry VIII of England]] and Queen Consort [[Catherine of Aragon]] are crowned.<ref>J.J. Scarisbrick, ''Henry VIII'' (1968) pp. 500–1.</ref>