Build a Directory

Still in beta — data is being thoroughly audited and verified

HomeBishopsJohn Siemianowski

A Visual Directory of the Hierarchy of the Catholic Church.

Currently featuring the bishops and dioceses of the United States.

Dedicated to Mary, Queen of Apostles and the Immaculate Conception.

Ora pro nobis!

Not affiliated with the USCCB, any (arch)diocese, or the Holy See.

Directory

Dioceses
Bishops
Build a Directory

About

About
Data Sources
Contact

Website, code, and design are copyright © 2026 Hierarchy.Directory. All rights reserved. No ownership or copyright is claimed over images, portraits, or data. Learn more here.

JS

His Excellency

Most Rev. John S. Siemianowski

Auxiliary Bishop

Archdiocese of Chicago

Born: May 26, 1960 · Chicago, Illinois, United States · Age 66
Ordained priest: May 20, 1989
Ordained bishop: February 26, 2025
Rite: Latin

A priest for 37 years, 5 months

A bishop for 1 year, 8 months

8 years, 6 months until canonical retirement

catholic-hierarchy.org Wikipedia

May 1960

Born

May 26, 1960 · Chicago, Illinois, United States

May 1989

Ordained to the Priesthood

May 20, 1989

Dec 2024

Appointed Auxiliary Bishop of Chicago

December 20, 2024 · Chicago, Illinois, United States

Feb 2025

Ordained Bishop

February 26, 2025

Portrait of Blase Cardinal Cupich

Blase Cardinal Cupich

Portrait of Most Rev. Jeffrey Grob

Most Rev. Jeffrey Grob

Portrait of Most Rev. Robert G. Casey

Most Rev. Robert G. Casey