County Coleraine

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Coordinates: 55°07′55″N 6°40′05″W / 55.132°N 6.668°W / 55.132; -6.668

County Coleraine, called the County of Colerain in the earliest documents,[1] was one of the counties of Ireland from 1585 to 1613. It was named after its intended county town, Coleraine.

Foundation and extent[edit]

Sir John Perrot, the Lord Deputy of Ireland, established County Coleraine between the Rivers Bann and Foyle in 1585 during the reign of Elizabeth I. Sir John intended administering the new county from the town of Coleraine. In the event, the English authorities built the courthouse and jail for the new establishment at Desertmartin in the adjacent county of Tyrone. Thomas Phillips (Irish adventurer) was appointed Governor of the County of Coleraine in 1611.

Towards a new county[edit]

English control of the territory remained nominal. Following the Flight of the Earls (1607) and O'Doherty's Rebellion (1608) the Crown, the lands the Irish aristocrats held escheated to the Crown. In 1609 the territory was given to the City of London Corporation and its livery companies, who received instructions to undertake its plantation.

The area for planting included:

In 1613, this larger area became incorporated into the newly founded County Londonderry, with its county town in the city of Derry, which was renamed Londonderry as part of the Royal Charter.


  1. ^ Hill, George. The Fall of Irish Chiefs and Clans; The Conquest of Ireland. Irish Roots Cafe, 2004. p.97