The Church of Saint John the Baptist (Kostyol Ioanna Krestitelya) is one of the ancient architectural structure of Lvov. Saint John Church faces the Old Marketplace. As Church Of Saint Mary it also underwent considerable changes. Saint John Church has began its existence as a church of the Orthodox Basilian Monks. In 1260 Prince Lev Daniilovich made a present of this church to his wife Constance, daughter of the Hungarian King Bela IV(1206 – 3 May 1270) , who remodeled the building to suit the Dominican missionaries. It acquired forms typical of the Romanesque style. This small, one-naved church with two narthexes and a single cut apse is far from being an imposing edifice: little has remained of its old architectural form.
In 1886-87 Saint John Church underwent capital reconstruction at the hands of the above-mentioned at Church Of Saint Mary post Yu. Zakharievich and emerged boldly decorated with pseudo-Romanesque ornament to the detriment of its initial features.Saint John Church old time icons which can be observed in the chancel and two male portraits in the vestry that date back to 1637 and 1647 continue to attract visitors. Noweadays there is a Museum of Ancient Lvov Statue.
