Palko. There are altarpieces by Karel Škréta of the Holy Trinity, the Assumption of the Virgin Mary, and Thomas of Villanova, and in the side aisle statues of St. Roch and Sebastian by Johann Georg Bendl. Burials It is the burial place of Butautas Kęstutaitis, the son of Kęstutis, Grand Duke of Lithuania. His brother Grand Duke Vytautas donated a large carpet to the church. The sculptor Adriaen de Vries is also buried in St. Barbara's Chapel in the crypt. A fountain designed by him is in the Italian garden of nearby Wallenstein Palace. Also buried at St. Thomas is the noted engraver Aegidius Sadeler, Spanish ambassador Guillen de San Clemente, and the English-Czech poet, Elizabeth Jane Weston. Present day In 1637, Peter Paul Rubens painted The Martyrdom of St Thomas for the high altar. Two years later, he did a painting of Saint Augustine. They were removed to the National Gallery Prague in 1639. Those above the main altar are copies. Masses are celebrated in Czech, English, Spanish, and Filipino. References Churches in Prague Augustinian churches in the Czech Republic