The Diocese of Peterborough was first established July 11, 1882 by Pope Leo
XXII and was found through the union of the Vicariate of Northern Canada and the
western part of the Diocese of’ Kingston. As an Episcopal see, it extended
from the shores of Lake Ontario north to Georgian Bay and from the shores of
Lake Superior to the border of the Archdiocese of St. Boniface, Manitoba. The
diocese had a Catholic population of about 30,000 and Bishop Jean Francois Jamot,
the first Bishop, took residence here.
