Mary McAleese, who has a gay son and has criticized the church’s position on L.G.B.T. issues, was invited to participate in a panel discussion on women in church governance.
O'Riordan, 46, died suddenly Jan. 15 in London, where she had been due to record material for a new release. Police were investigating her death, calling it "unexplained."
Britain and Ireland both want to prevent the return of a “hard border” around Northern Ireland, but that goal is difficult to square with leaving the European Union.