Siege of Pavia
773 CE.
Shown on the map at 45.185°, 9.154°.
The siege or battle of Pavia was fought in 773–774 in northern Italy, near Ticinum (modern Pavia), and resulted in the victory of the Franks under Charlemagne against the Lombards under King Desiderius.
Text from the Wikipedia article Siege of Pavia (773–774), licensed CC BY-SA 4.0.