The Sack of Caernarvon took place on 1086 during the English Campaign after being taken by King William the Conqueror.

Battle of Caernarvon
Some attributes
First English led by King William the


Second Rebels led by Captain Leonard.
Third Years 1084-1086
Other attributes
Fourth 449 English vs. 397 Rebels
Fifth 67 English losses and 223 initial

Rebel losses.

Sixth English Victory; Caernarvon joins

England; Caernarvon is sacked, with350 out of 1751 slaughtered, along with remaining Rebel army.


The Battle began on 1084 with William laying siege to the castle while buildings a ram and ladders. Reinforcements arrived in 1086 and the battle began.

The Rebels, led by Captain Leonard, had more archers than the English and set them upon the walls. William ordered a heavilry armored unit of Billmen to push the ram and sent his only archer unit with them to assist. Because of the heavy fire, many of the longbowmen and billmen died, but the gates fell eventually and William charged in.

Resistacne was high as the Rebels formed a spear wall to keep William away. His longbowmen fought the Rebel archers on the walls in melee, but were flanked by the other Rebel longbow unit. They were all killed and the Rebels resumed fire.

Early on, Captain Leonard attempted to reach William, who was flanked and protected by his bodyguard. Leonard was killed by one of his own men, struck in the stomach accidentally by an arrow.

With their leader dead, the Rebels wavered and were pushed back. William ordered his men to the walls and slaughtered the longbowmen. Soon after, the rebels surrendered to the English.


William was still upset over the death of his son by Rebellious hands. He ordered the remaining rebel army to be executed. He then sacked the city, destroying several buildings and killing 350 of the castle's 1751 citizens. William would use the port at Caernarvon to launch the attack on Dublin.