Louis II's campaign against Bari (866–871)

Capture of Bari
	; Louis at the capture of Bari in 871; (19th-century lithograph)
Date	866–871
Location	southern Italy
Result	Frankish victory Fall of the Emirate of Bari;
Belligerents
Frankish Empire; Supported by: Principality of Benevento; Principality of Salerno; Principality of Capua; Duchy of Croatia; Byzantine Empire Kanalites; Serbia; Travunia; Zachlumia; ;	Emirate of Bari; Supported by: Aghlabid dynasty; Emirate of Taranto;
Commanders and leaders
Louis II	Sawdān (POW)

The Frankish emperor Louis II campaigned against the Emirate of Bari continuously from 866 until 871. Louis was allied with the Lombard principalities of southern Italy from the start, but an attempt at joint action with the Byzantine Empire failed in 869. In the final siege of the city of Bari in 871, Louis was assisted by a Slavic fleet from across the Adriatic.

The city fell and the emir was taken captive, bringing the emirate to an end, but a Saracen presence remained at Taranto. Louis himself was betrayed by his Lombard allies six months after his victory and had to leave southern Italy.