The Old Roman Catholic Diocese of Chicago is the oldest Diocese in the country founded on October 17th 1917 by Bishop Rudolph Francis Edward Hamilton de Lorraine-Brabant, the Prince de Landes Berghes a bishop of the Old Roman Catholic Church in Great Britain.

Bishop de Landes Berghes                                1917 - 1919                                                                                     (OCCA 1925 - 2014

Archbishop Carmel Henry Carfora                 1919 - 1958                                                                                      + Paul Francis Cope

Bishop Sigismund Vipartas                              1958 - 1961                                                                                      + Francis Xavier Resch

Archbishop John E. Schweikert                       1961 - 1988                                                                                      + Walter Xavier Brown

Archbishop Theodore J. Rematt                      1988 - 2016                                                                                      +Earl Patrick Gasquione  Bishop Earl Patrick Gasquione

Bishop Nioclás Kelly                                           2017 -                                                                                               + Nioclás Kelly 2017 - )


Under Archbishops Jerome Lloyd and David Persyn (OCCA) both of the former Dioceses were amalgamated into the Old Roman American Apostolate (Chicago & the Midwest) and entrusted to the Episcopal Administration of 
The Most Revd Nioclás Ó Ceallaigh (Kelly) DD OSF
Titular Bishop of Movilla




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