Historical Events in 1091
- Apr 29 Battle at Monte Levunium: Byzantium Emperor Alexius I beats Petshegene force invading from the north
- Jun 17 Floris II de Vette becomes Count of Holland
- Oct 23 Tornado (possible T8/F4) strikes the heart of London killing two and demolishing the wooden London Bridge (OS 17 Oct) [1]
Gregory I
Gregory XIII
Julius II
Julius III
Leo X
Pius V