Mar 3 Austrian civil war ends Mar 25 Council of Pisa opens - elects Antipope Alexander V Jun 26 Council of Pisa selects Petros Philargi as 3rd Pope: Alexander V Aug 7 Council of Pisa closes Dec 2 The University of Leipzig opens 1408 Historical Events by Year 1410 Medieval Popes Gregory I Gregory XIII Julius II Julius III Leo X Pius V