1086 papal election
1086 CE.
Shown on the map at 37.073°, 15.292°.
The 1086 papal election (held 24 May) ended with the election of Desiderius, abbot of Monte Cassino as Pope Gregory VII's successor after a year-long period of sede vacante.
Text from the Wikipedia article 1086 papal election, licensed CC BY-SA 4.0.