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Inside the Lviv Garrison Church: Jesuit History, Crypts, and Military Sanctuary

What if we told you that some of Lviv’s oldest surviving architectural remains are hidden beneath one of its most recognizable churches? While most visitors admire the impressive Baroque interior of the Garrison Church of Saints Peter and Paul, there is another world waiting downstairs. Ancient walls, mysterious crypts, miniature cities, and historical objects tell the story of Lviv across centuries — from its princely beginnings to the city we know today. And the best part? You don’t need a time machine to explore it. Just head underground!

Culture • Practical Tips • History • Tours • 6 min. read

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A Jesuit Legacy and Military Sanctuary

The Garrison Church of Saints Peter and Paul, located on Teatralna Street, was originally built as a Jesuit church. Construction began in 1610, and the church was consecrated in 1630. The Jesuits were not only a religious order but also important educators, establishing schools and colleges across Europe. Their presence in Lviv left a significant mark on the city’s religious, educational, and architectural history.

But why is it called a garrison church?

For centuries, the church served soldiers and their families, including during the Austrian and Polish periods. It became a place where military personnel could pray, attend religious services, and mark important moments in their lives.

The 20th century brought dramatic changes. After the Second World War, the church was closed, and during the Soviet period, its vast interior was used as a book depository for the Vasyl Stefanyk National Scientific Library. Imagine millions of books filling a monumental Baroque church!

In 2011, the church reopened for worship and became an important spiritual center for Ukrainian military personnel and their families. Today, military chaplains serve here, and the church provides spiritual support to Ukraine’s defenders.

This makes the building more than just a historical monument. Its military connection is not something that belongs exclusively to the past — it remains part of the church’s everyday life.

Stepping Down Into Medieval Lviv

Descending into the church's lower levels reveals a sharply different atmosphere. The bright, ornate nave above gives way to dimly lit corridors with thick brick walls and low arched ceilings. These vaulted cellars highlight the practical engineering required to support heavy stone churches in early modern Europe, but excavations have uncovered much older secrets.

Dimly lit brick and stone vaulted underground corridor with low arched ceilings and stone steps.
An underground tunnel beneath one of the naves of the Garrison Church of Saints Peter and Paul.

Beneath the 17th-century brickwork, archaeologists discovered the remains of 14th-century residential walls and the stone foundations of a 15th-century city school. Walking across the cobblestone floors, visitors can observe these excavated structures, which demonstrate how the grand Baroque complex was physically built directly on top of older, medieval urban layers.

The Crypts: Burial Traditions and History

One of the most intriguing parts of the underground complex is its burial spaces.

The church’s crypts were associated with the traditional practice of burying members of the clergy and other prominent individuals beneath religious buildings. In earlier centuries, being buried inside a church was a significant privilege, reflecting a person’s religious standing, social position, or connection to the institution.
The undergrounds preserve traces of this funerary history, including a historic sarcophagus. It is one of those objects that immediately makes you pause and wonder about the person for whom it was made.

Historic carved sarcophagus inside a brick-vaulted underground crypt with stone paving.
An ornate sarcophagus resting in the historic vaulted crypt beneath the Jesuit Church in Lviv.

While the crypts were largely cleared out and reorganized during later Austrian sanitary reforms, these remaining stone coffins serve as quiet reminders of the city’s historical inhabitants. The detailed inscriptions and stonework illustrate the religious traditions that dictated final resting arrangements for the elite clergy.

Lviv in Miniature: Tracing the City's Evolution

The undergrounds are also home to highly detailed architectural scale models that map Lviv’s urban development. These miniature reconstructions allow visitors to visualize the city's layout starting from its early princely era, when wooden fortifications characterized the settlement.

Three miniature models in the underground exhibition of the Garrison Church reveal how dramatically Lviv has changed over the centuries. The first takes us back to the 13th century, when King Danylo of Galicia founded the city and his son, Prince Lev, continued its development.

Overhead view of a scale model showing fortified medieval city walls, streets, castle hill, and surrounding terrain.
A scale model illustrating the medieval layout and defensive walls of historic Lviv.

The next one shows a fortified Gothic town shaped by Magdeburg law, with the Market Square at its heart, when Lviv was part of the Kingdom of Poland and later the Polish-Lithuanian Commonwealth.

Scale model showing medieval Lviv with city walls, towers, houses, and the Latin Cathedral.
Scale model of gothic Lviv

But the great fire of 1527 destroyed almost the entire medieval city, paving the way for Renaissance and Baroque architecture that shaped the Lviv we admire today. Under Habsburg rule, from 1772, Lviv expanded beyond its old fortifications, modernized, and grew into an important administrative, cultural, and intellectual center.

Detailed scale model showing historic Lviv with medieval fortifications, churches, and houses.
A detailed historical model showing the 18th century Lviv enclosed within its defensive walls.

You can explore these stages of the city’s history with your own eyes in the undergrounds of the Garrison Church!

Detailed architectural scale model of historic Lviv, showing city walls, towers, and church spires.
A scale model recreating the 18th century fortified layout and prominent church towers of historic Lviv.

Symbols of Service: Modern Military Exhibits

Reflecting its current role as the Garrison Church, part of the underground museum is actively dedicated to Ukraine's contemporary military community. Display cases set within the historic stone vaults hold a collection of military flags, unit patches, and insignia.

Underground vaulted stone cellar with an architectural church model in a glass case and military flags on display.
The underground museum of the Garrison Church in Lviv, featuring a collection of military flags and patches representing different units of the Armed Forces of Ukraine.

These items, often left by soldiers or their families, represent different units of the Armed Forces of Ukraine, transforming the ancient cellar into a space of modern remembrance. This intersection of 17th-century architecture and ongoing history highlights the enduring cultural and social importance of the building to the people of Lviv today.

Invitation for the tour into the Undergrounds with Walkative

Exploring the subterranean spaces of the Garrison Church offers a unique perspective on Lviv’s past and present. For those who want to navigate these layered histories with expert context, joining a guided walking tour provides a structured and informative experience.

Tour guide with a yellow umbrella talks to visitors in front of the Jesuit Church in Lviv.
A Walkative! Lviv guided tour gathers before the historic Church of Saints Peter and Paul in Lviv.

Our guides will take you to places where history comes alive, share fascinating stories about Lviv’s past, and help you discover the layers of history hidden beneath the city’s streets.

Get in touch with us to learn more and plan your visit!

Stay Walkative! 💛

Halyna Vyliika

Written by

Halyna Vyliika

Halyna has been working as a guide since 2014, focusing on the complex and multicultural history of Ukraine and Galicia, particularly the 20th century. Today, her work goes beyond guiding: she develops tours and materials about Lviv & Ukraine’s history, culture and everyday life, exploring trauma and the culture of memory while helping foreign guests better understand Ukraine today.

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