The Kingdom of Ireland was a vassal state of England and then of Great Britain from 1542 to the end of 1800. It was ruled by the monarchs of England and then of Great Britain, and was administered from Dublin Castle See more

The kingdom's legislature was bicameral with a House of Lords and a House of Commons. By the terms of Poynings' Law (1494) and other acts, the parliament's powers were greatly … See more

When Henry VIII was excommunicated by the Catholic Church in 1538, all but two of the bishops in the island of Ireland followed the doctrine of the Church of England, although almost no clergy or laity did so. Having paid their Annates to the Papacy See more

Background
The papal bull Laudabiliter of Pope Adrian IV was issued in 1155. It authorized the Angevin King Henry II of England to invade Ireland, … See more

The Kingdom of Ireland was governed by a Lord Deputy or viceroy. The post was held by senior nobles such as Thomas Radcliffe. From 1688 the title was usually Lord Lieutenant. … See more

The legacy of the Kingdom of Ireland remains a bone of contention in Irish-British relations to this day because of the constant ethnic … See more

The arms of the Kingdom of Ireland were blazoned: Azure, a harp Or stringed Argent. These earliest arms of Ireland are described in an entry … See more