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Since its opening in 2008, the Diocesan Museum takes special honor in the exhibition of the rich history of the Peoria Diocese. With pride it carries the educational mission of learning about the roots of our faith and the legacy of the diocese's forefathers and bishops.
The museum's primary audience ranges from the students of the numerous diocesan Catholic Schools to ever-growing general public as well as everyday visitors to the
The Museum features a yearly exhibit on a particular topic of our diocesan history. Visitors are welcome to view the displays on their own or ask for a guided tour if desired. The museum operates solely on your generosity. To support our mission please click here: DONATECOAT OF ARMS OF THE DIOCESE OF PEORIA
The entire territory of the present Peoria Diocese was originally French; therefore the blue and gold and the royal French arms are used. The gold cross on blue background known as the Cross of Saint-Denys indicates the Catholic French kings, explorers and missionaries.
The calumet (peace pipe) laid on the cross recalls a sign of esteem of the Indian chief for the Jesuit missionary Fr. Jacques Marquette, the first white man entering the future territory of the Diocese of Peoria. Above and below it, there are two fleurs-de-lis, the top one in honor of Father Marquette, the lower one for his companion Louis Joliet.
The eight-pointed gold star is from the crest of another companion, a nobleman Robert Cavalier de La Salle. The star is also one of the heraldic attributes of the Blessed Virgin Mary, in whose name the Cathedral is dedicated: St. Mary of the Immaculate Conception.