Williamite War in Ireland
1689–91 conflict between supporters of rival claimants to the British throne
The Williamite War in Ireland took place from March 1689 to October 1691. Fought between Jacobite supporters of James II and those of his successor, William III, it resulted in a Williamite victory. It is generally viewed as a related conflict of the 1688 to 1697 Nine Years' War.
The November 1688 Glorious Revolution replaced the Catholic James with his Protestant daughter Mary II and her husband William, who ruled as joint monarchs of England, Ireland, and Scotland. However, James retained considerable support in largely Catholic Ireland, where it was hoped he would address long-standing Irish Catholic grievances on land ownership, religion and civic rights.
The war began in March 1689 with a series of skirmishes between the mostly-Catholic Irish Army, which had stayed loyal in 1688, and newly-raised Protestant troops. Fighting culminated in the siege of Derry, where the Jacobites failed to regain control of one of the north's key towns. This enabled William to land an expeditionary force, which defeated the main Jacobite army at the Boyne in July 1690. James returned to France after the battle, while the Jacobites were decisively defeated at Aughrim in 1691. The war ended with the Treaty of Limerick in October 1691.
Begin with the source’s own compact description: “Williamite War in Ireland” is 1689–91 conflict between supporters of rival claimants to the British throne. The dossier treats that line as a proposition to test through Williamite, Ireland and conflict, not as a finished interpretation.
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Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Sep 25, 2026. The linked authority identifier is Q2320981. The Library of Congress control number is sh85068009. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1689, 1691, 1688 and 1697.
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This entry incorporates text from “Williamite War in Ireland” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.