Holy Trinity Church

Holy Trinity Church (Kostel Nejsvětější Trojice) is a Gothic-Baroque church on Božetěchova street in the Brno-Královo Pole district, once part of a Carthusian monastery. It's one of the oldest surviving religious complexes in Brno, with roots going back to the 14th century.

Who founded the church, and when?

The church and its attached Carthusian monastery were established by a charter dated 13 August 1375, issued by the Moravian margrave John Henry together with his sons Jošt, Jan Soběslav and Prokop. Construction took over a decade and was largely finished around 1387. The resulting building followed the austere Gothic style typical of Carthusian houses, designed around the monks' contemplative way of life rather than public display.

How did the church's architecture develop?

Building work proceeded in two phases. The first produced the presbytery, the nave and the north chapel, which originally served as the sacristy. The second phase added the south chapel, formerly the chapter house. Despite repeated wartime damage, the core structure remained largely unchanged until the mid-18th century, when, under the monastery's last prior, Athanasius Gottfried, it underwent a thorough Baroque remodeling. Work starting around 1760 raised the building's height, reworked the main façade and added the so-called Swedish Chapel. That Baroque exterior is what visitors see today, even though the Gothic core survives in the layout of the interior.

Why was the church damaged so many times?

Because the Carthusian monastery stood outside Brno's city walls, it was especially exposed to military conflict. The church and monastery buildings were ransacked in turn by Hussite forces in 1428, by a Hungarian army in 1468, by Estates troops during the Bohemian uprising of 1619–1620, and most severely by Swedish forces during the siege of Brno in 1643. Each wave of destruction required repairs, which is why today's building reads as a layered structure built up over several distinct phases.

What is inside the former monastery today?

After the monastery was dissolved, its buildings served various purposes, including as military barracks until the end of 1963. The complex was then taken over by the Brno University of Technology (VUT), and the former monastery buildings now house the university's Faculty of Information Technology. The church itself remains an active parish church, and the entire complex — church and monastery together — is protected as a cultural heritage site of the Czech Republic. The church also houses a historic organ, which is opened to the public during events such as the annual Open House Brno.

How do you get there?

The church stands on Božetěchova street in Královo Pole, a district northwest of Brno's historic centre, next to the VUT university campus. It's easy to combine a visit with a look at the surrounding university buildings and a walk through this quiet, green part of the city, away from the crowds of the Old Town.

Frequently asked questions

Can you visit the church? Yes — as an active parish church it's accessible during services, and it also opens to visitors during events like Open House Brno.

What is the oldest part of the building? The presbytery, nave and north chapel date from the first construction phase in the late 14th century, when the Carthusian monastery was first built.

Why does a Gothic-era church look Baroque today? Because it underwent a major mid-18th-century remodeling that reshaped the façade and raised the building's height, while the Gothic layout of the interior survived underneath.

What occupies the former monastery buildings now? The Faculty of Information Technology of the Brno University of Technology (VUT), after the site had earlier served as military barracks until 1963.