The church of the Holy Trinity in Gliwice is one of the three Armenian catholic parish churches in Poland. Its present parson is Tadeusz Isakowicz-Zaleski. The church building was erected in the neo-Classicist style, in the first half of the nineteenth century. Inside the shrine, it is worthwhile to see the miraculous image of Our Lady of Łysiec, which was brought by the borderlanders to Silesia, and was placed in the church in 1950.