Topics: Church of Ireland - Wikipedia
that part of the Irish Church which was influenced by the Reformation, and has its origins in the early Celtic Church of St Patrick. 
The Church of Ireland considers itself Catholic because it is in possession of a continuous tradition of faith and practice, based on scripture and early traditions, enshrined in the Catholic creeds, together with the sacraments and apostolic ministry.  However, the Church of Ireland is also Protestant , or Reformed, since it opposes doctrines and ways of worshiping that it considers contrary to scripture and which led to the Reformation.
The Church of Ireland, as a Reformed and Protestant Church, doth hereby re-affirm its constant witness against all those innovations in doctrine and worship whereby the Primitive faith hath been from time to time defaced or overlaid, and which at the Reformation this Church did disown and reject.