Bing found the following results
Siege of Acre (1189–1191) - Wikipedia
Siege of Acre (1291) - Wikipedia
The Siege of Acre, 1189-91 CE - World History Encyclopedia
The Siege of Acre, 1291 CE - World History Encyclopedia
Siege of Acre (1799) - Wikipedia
Siege of Acre in the Crusades - ThoughtCo
Acre: the battle that ended the Crusades - Sky HISTORY
Third Crusade: Siege of Acre - HistoryNet
The Siege of Acre - Yale University Press
Siege of Acre (1291) - Wikiwand