overview opening hours The cross-shaped church was built in Baroque classical style from 1691—1717 by the monastic order of the Theatines. The church’s extraordinary architecture, attributed to Jean Baptiste Mathey and finished by Jan B. Santini-Aichel, is complemented by valuable Baroque sculptures and paintings. opening hours The church is open Mon—Wed: 1:00 p.m.—5:00 p.m., Thu—Sun: 10:00 a.m.—5:00 p.m. Greek Catholic Ukrainian Liturgy Sundays 9:00 a.m. (in Ukrainian) The church is operated by the Archdiocesan Charity of Prague. Organ concerts are occasionally held here. more about opening hours opening hours The church is open Mon—Wed: 1:00 p.m.—5:00 p.m., Thu—Sun: 10:00 a.m.—5:00 p.m. Greek Catholic Ukrainian Liturgy Sundays 9:00 a.m. (in Ukrainian) The church is operated by the Archdiocesan Charity of Prague. Organ concerts are occasionally held here.