Why did William of Normandy besiege Canterbury?

William of Normandy besieged Canterbury in 1067 as part of his efforts to consolidate his control over England following the Norman Conquest. The city was a key stronghold and symbol of resistance, particularly due to its significance as a seat of the Church and as a center of rebellion against Norman rule. By capturing Canterbury, William aimed to suppress dissent and establish his authority over the region. The siege ultimately demonstrated his military power and reinforced his rule in England.