Roman Catholic Diocese of Vincennes (Indiana)

The Diocese of Vincennes (in Latin, Vincennapolis), the first Roman Catholic diocese in Indiana, was erected 6 May 1834 by Pope Gregory XVI. Its initial ecclesiastical jurisdiction encompassed Indiana as well as the eastern third of Illinois. In 1843 the Diocese of Chicago was erected from the Illinois portion of the diocese, and in 1857 Diocese of Fort Wayne was erected from the northern half of Indiana. The seat of the episcopal see was transferred from Vincennes, Indiana, to Indianapolis, and on 28 March 1898 it became the Diocese of Indianapolis. Pope Pius XII elevated the Indianapolis diocese to an archdiocese in 1944, and erected two new Indiana dioceses: the Diocese of Evansville and the Diocese of Lafayette. The Diocese of Gary, Indiana, was erected in 1956. The Evansville Diocese absorbed the city of Vincennes upon its creation.