A new leader for the Joliet diocese
Bishop Brendan Cahill formally began his tenure as the seventh bishop of the Diocese of Joliet during an installation Mass Wednesday at the Cathedral of St. Raymond Nonnatus. The ceremony placed a Texas bishop at the center of a major leadership transition for a Catholic diocese that serves approximately 500,000 people across a broad portion of northeastern Illinois.
Cahill spoke warmly about arriving in Joliet and appeared visibly pleased as the Mass concluded. He described the occasion as a personal honor and said he felt blessed to be taking on the position. He also reflected on what the day would have meant to his father, whom he characterized as deeply devoted to his Irish Catholic faith.
“I am very honored and blessed to be here.”
The installation was led by the Most Rev. Gabriele Caccia, the apostolic nuncio to the United States. During the service, Caccia read a letter from Pope Leo XIV before formally installing Cahill as bishop. The ceremony included prayers with bishops and priests, along with a procession of clergy that took about 10 minutes as participants entered and later departed the cathedral.
National and regional Catholic leaders attend
The Mass drew senior Catholic officials as well as current and former leaders connected to the Diocese of Joliet. Cardinal Blase Joseph Cupich, the archbishop of Chicago, attended, as did Archbishop Ronald Hicks, Cahill’s predecessor. Hicks now leads the Archdiocese of New York. Two other former Joliet bishops who are still living, the Most Rev. Daniel Conlon and the Most Rev. Peter Sartain, were also present.
| Participant | Role connected to the ceremony |
|---|---|
| Brendan Cahill | Installed as the seventh bishop of Joliet |
| Gabriele Caccia | Installed Cahill and read the pope’s letter |
| Ronald Hicks | Cahill’s predecessor; now archbishop of New York |
| Blase Joseph Cupich | Archbishop of Chicago |
The presence of the former bishops underscored the continuity of the Joliet diocese as Cahill assumes responsibility from Hicks. The gathering also connected local Catholic leadership with the wider church, represented by the apostolic nuncio and the archbishop of Chicago. Scores of priests, bishops and other celebrants took part in the service, filling out a ceremony that was both local in setting and broad in representation.
A diocese covering seven counties
Cahill’s new jurisdiction includes Catholics in DuPage, Ford, Grundy, Iroquois, Kankakee, Kendall and Will counties. Will County includes Joliet, the city where the installation took place and where the diocese’s cathedral is located. The size of the territory means Cahill’s leadership will extend well beyond the city, reaching communities across suburban, rural and regional areas of Illinois identified as part of the diocese.
- Seven counties are included in the Diocese of Joliet.
- The diocese serves about 500,000 Catholics.
- Cahill is the diocese’s seventh bishop.
- The installation occurred at the Cathedral of St. Raymond Nonnatus in Joliet.
In remarks during the installation, Caccia told Cahill that he was joining a diocese with a history that came before him and that he would become part of the story already being written. That message framed the ceremony as more than a change in office: It marked Cahill’s entry into an established religious community with institutions, clergy and parishioners spread across seven counties.
For Joliet, the Mass placed the city at the center of the diocese’s latest chapter. Cahill’s comments after the service conveyed his enthusiasm about the assignment, while the attendance of church leaders from Chicago, New York and the national Catholic structure demonstrated the significance of the transition. His installation now formally begins his leadership of the Diocese of Joliet.
