The Siege of Drogheda begins on September 3, 1649 and runs through September 11, at the outset of the Cromwellian conquest of Ireland.

The Royalist rebellion that breaks out in Ireland against the new English republic in 1649 is met by a prompt English response. On August 15 Oliver Cromwell and 15,000 troops land in Dublin. His merciless policy toward the Irish Royalists becomes brutally clear within a month.

The defeat of the Irish Royalists at Rathmines in early August is fortuitous for Cromwell, for without it, the English would have held only the small port of Derry (known as Londonderry from 1662) in the north, making his invasion almost impossible to effect. Cromwell quickly finds that the Irish Royalists have retreated into fortified towns. He therefore prepares for a series of sieges.

The first such siege occurs at Drogheda, 28 miles north of Dublin. Cromwell arrives at Drogheda on September 3. His siege guns, brought up by sea, arrive two days later. He finds the town surrounded by high but relatively thin walls and its governor, Sir Arthur Ashton, is confident of his defenses and refuses an order to surrender. On September 10 Cromwell begins an artillery bombardment of the walls. These are breached the following day, but the gap created is too small to allow troops to enter the city. Twice they are repelled until Cromwell himself leads an assault and overwhelms the defenders on September 11.

The carnage inside the city is appalling. Cromwell’s troops kill priests and monks on sight and set fire to a Catholic church sheltering some soldiers. Civilians as well as soldiers are massacred, and Ashton is bludgeoned to death with his own wooden leg. The few Royalist soldiers who survive are transported to Barbados. What happens at Drogheda is replicated at Wexford the following month and Clonmel the next May. By the time Cromwell has put down the rebellion and returned to England in that same month, he has become forever hated by Irish Catholics.

During the eight day siege the British lose 150 of their 12,000 men while 2,800 Irish are killed and 200 captured of the 3,100 at Drogheda.

(Pictured: St Laurence’s Gate – the last remaining of the ten original defensive gates at Drogheda)