1559 papal conclave
1559 CE.
Shown on the map at 41.904°, 12.456°.
The 1559 papal conclave (5 September – 25 December) was convened on the death of Pope Paul IV and elected Pope Pius IV as his successor. Due to interference from secular rulers and the cardinals' disregard for their supposed isolation from the outside world, it was the longest conclave of the 16th century.
Text from the Wikipedia article 1559 conclave, licensed CC BY-SA 4.0.