Editing 1409 (section)

=== July&ndash;September ===
* [[July 9]] &ndash; The [[Republic of Venice]], led by the [[Doge of Venice|Doge]] [[Michele Steno]], gains control of both sides of the [[Adriatic Sea]] by purchasing the [[Dalmatia]]n coast (now bordered by [[Slovenia]] and by [[Croatia]]) from [[Ladislaus of Naples|King Ladislaus the Magnanimous]], ruler of the [[Kingdom of Naples]] for 100,000 [[Ducat#Gold ducat of Venice|ducats]], or 350 [[kilogram]]s of gold.<ref>[https://www.google.com/books/edition/Catholic_Encyclopedia/MlY_AQAAMAAJ?hl=en&gbpv=1&dq=%229+July+1409%22+venice&pg=PA511&printsec=frontcover "Croatia"], by M. D. Kampotic, in ''The Catholic Encyclopedia'', ed. by Charles G. Herbermann, et al., Volume IV (Robert Appleton Company, 1908) p.511</ref>
* [[July 25]] &ndash; [[Martin I of Aragon|Martin I]], [[Crown of Aragon|King of Aragon]], becomes the [[Monarchs of Naples and Sicily|King of Martin II of Sicily]] upon the death of his son, [[Martin I of Sicily]].
* [[August 6]] &ndash; [[Polish–Lithuanian–Teutonic War|
War breaks out]] between the [[Teutonic Knights]] and the allied Kingdom of Poland and Grand Duchy of Lithuania.<ref name=Turnbull/>
* [[August 7]] &ndash; The [[Council of Pisa]] closes.
* [[September 9]] &ndash; [[Pope Alexander V]] issues a papal bull granting a charter to the [[University of Leipzig]].<ref name=Leipzig600>{{Cite web|url=http://www.sechshundert.de/index1_e.php?JavaScript=On|archive-url=https://web.archive.org/web/20110719084528/http://www.sechshundert.de/index1_e.php?JavaScript=On|url-status=dead|title=Universität Leipzig 600th Anniversary|archive-date=19 July 2011}}</ref>