Year 1312 was a leap year starting on Saturday (link will display the full calendar) of the Julian calendar. Events of 1312 October 13 - Pope Clement V forcibly disbands the Knights Templar. Some argue that this date is the basis for the stigma surrounding the "Friday the 13th". Undated A battle is fought near Thebes. The Siege of Rostock begins. Lancelotto Malocello, a Genoese navigator, sails to the island of Lanzarote, one of the Canary Islands, and remains there for almost two decades.… (More on 1312)