1666 in Ireland

Events from the year 1666 in Ireland.

Incumbent

 * Monarch: Charles II

Events

 * February – William Penn moves from London to Ireland to manage his father's estates. In May, he is involved in suppressing a mutiny in the English garrison at Carrickfergus.
 * The Parliament of Ireland meets for the last time until 1692 (apart from the Patriot Parliament of 1689).
 * Lord Maurice Roche of Castletownroche in County Cork loses his entire estate to Lieutenant Colonel John Widenham who receives the Castle as a reward for his loyalty to the Crown. The Castle of the Roches is thus renamed "Castle Widenham".

Births

 * Approximate date – Richard Pockrich, landowner, military commander and politician (d.1719)

Deaths

 * August – Richard Burke, 6th Earl of Clanricarde, peer.
 * December 1 – Sir James Ware, historian, politician and Auditor general for Ireland (b.1594)
 * Sir Oliver Óge French, Galway merchant.
 * Raymond Caron, O.M.R., Franciscan friar and writer (b.1605)
 * Approximate date – Thomas Arthur, physician (b.1593)