The archbishop of Toronto is the head of the Roman Catholic Archdiocese of Toronto, responsible for looking after its spiritual and administrative needs. As the archdiocese is the metropolitan see of the ecclesiastical province encompassing Southern Ontario and part of Northwestern Ontario, the archbishop of Toronto also administers the bishops who head the suffragan dioceses of Hamilton, London, Saint Catharines, and Thunder Bay. The archdiocese began as the Diocese of Toronto, which was created on December 17, 1841. Michael Power was appointed its first bishop, and under his reign, the construction of St. Michael's Cathedral Basilica in Toronto commenced, with Power laying the cornerstone of the new church. Ten men have been Archbishop of Toronto; another two were bishop of its predecessor diocese. Four archbishops – James McGuigan (pictured), Gerald Emmett Carter, Aloysius Ambrozic, and Thomas Christopher Collins – were elevated to the College of Cardinals. (Full list...)