The Holy See announced on April 27  that Pope Francis has accepted the resignation of Archbishop George Stack of Cardiff, Wales, appointing Bishop Mark O’Toole of the Diocese of Plymouth, England, to succeed him. At the same time, O’Toole has also been named the Bp of Menevia, the neighbouring Welsh diocese, which has had no bishop since 2019. The pope united the sees in persona episcopi, unifying them in the person of the bishop who oversees them both, even while they remain juridically separate. While the move is historically unusual, it has become increasingly common under Pope Francis, and could signal the eventual merger of dioceses in countries across the West, including the United States, in the face of declining numbers of clergy and Mass-going Catholics.