James II became King of England, Scotland, and Ireland in 1685. James, a Catholic, immediately began filling army and government posts in Ireland with Catholics. This provoked fears of civil war and led to James being dethroned in what is known as the Glorious Revolution. He was replaced by his son-in-law William of Orange (a Protestant) in 1688.
James fled to France, but continued to have widespread support in Ireland. His deputy, the Earl of Tyrconnell, raised an Irish army to support the Jacobite cause. In 1689 James landed in Ireland with a French army and linked forces with Tyrconnell.
Determined to gain control of the situation, William arrived in Belfast in June 1690 with an army of 36,000 men. At the battle of the Boyne he defeated the Jacobite force of 25,000 Irish and French troops forcing James to flee Ireland. Although the Jacobites were beaten the war dragged on for another year.
In July 1691 near the village of Aughrim the Jacobite army led by Charles Chalmont, faced the main English force again. This time the