George Berkeley – known as Bishop Berkeley – was an Anglo-Irish philosopher whose primary achievement was the advancement of a theory he called "immaterialism". This theory denies the existence of material substance and instead contends that familiar objects like tables and chairs are ideas perceived by the mind and, as a result, cannot exist without being perceived. Berkeley is also known for his critique of abstraction, an important premise in his argument for immaterialism.
Portrait of Berkeley by John Smybert, 1727
A group portrait of Berkeley and his entourage by John Smibert
Whitehall, Berkeley's home in Middletown, Rhode Island
The Church of Ireland is a Christian church in Ireland, and an autonomous province of the Anglican Communion. It is organised on an all-Ireland basis and is the second-largest Christian church on the island after the Roman Catholic Church. Like other Anglican churches, it has retained elements of pre-Reformation practice, notably its episcopal polity, while rejecting the primacy of the pope.
Holmpatrick St Patrick Church in Skerries, County Dublin
Pope Adrian IV, who claimed Ireland for the Papacy in 1155
Henry II with Thomas Becket; the 1155 intervention was the start of efforts to Anglicise the Irish church
James Ussher, Archbishop of Armagh