The Lordship of Ireland (Irish: Tiarnas na hÉireann), sometimes referred to retrospectively as Anglo-Norman Ireland, was the part of Ireland ruled by the King of England (styled as "Lord of Ireland") and controlled by loyal Anglo-Norman Lords between 1177 and 1542. The lordship was created following the Anglo-Norman invasion of Ireland in 1169–1171. It was a papal fief, granted to the Plantagenet kings of England by the Holy See, via Laudabiliter. As the Lord of Ireland was also the King of England, he was represented locally by a governor, variously known as the Justiciar, Lieutenant, Lord Lieutenant or Lord Deputy.
The kings of England claimed lordship over the whole island, but in reality the king's rule only ever extended to parts of the island. The rest of the island – referred to subsequently as Gaelic Ireland – remained under the control of various Gaelic Irish kingdoms or chiefdoms, who were often at war with the Anglo-Normans.
