in 1454, pope nicholas v gave permission for the then bishop, aindrias mac brádaigh (anglicised: andrew mcbrady), to have the ancient church at kilmore, founded in the 6th century by saint felim (or feithlimidh), to be the cathedral church of the diocese. this building passed into the hands of the church of ireland at the reformation, and, following the construction of a new cathedral, is now used as a parochial hall.