Sack of Thessalonica: Saracen raiders under Leo of Tripoli sack Thessaloniki, the Byzantine Empire's second-largest city, after a short siege, and plunder it for a week.
The Sack of Thessalonica refers to the capture, and subsequent sack, of the Byzantine city of Thessalonica by the Abbasid Caliphate in the year 904, led by Leo of Tripoli, a privateer and Muslim convert.