Roman Catholic Church of the assumption of the blessed virgin Mary (Polish Church), which is one of the most beautiful buildings in the city of Irkutsk, located in the historic center of the city, on the street Sukhbaatar. The history of Irkutsk, the Catholic Church began in 1819 Initiated its construction were made by the Bernardine monks of the order, which arrived in Irkutsk and Tomsk on the position of Catholic priests. The Church consecrated in honour of the Dormition of the Mother of God, built by the end of 1825

Initially, the temple was a beautiful one-story wooden structure that stood on the same place where later was built the present stone Church. In 1879, during a severe fire burned almost the entire Central part of Irkutsk, including the Church. Soon began to collect funds for the construction of a new Church.

The construction of the temple began in 1881, the Project has been made famous Irkutsk architect Jozef Tamulevich. Supervised the construction work the pole. Chomicki. The Cathedral turned out to be beautiful and fit into the overall ensemble of the Central square of the city. Near the Church is a small chapel in the name of St. innocent. The chapel was built in September 1868

The construction of the Church ended in 1884, the Solemn consecration of the temple in honor of the Dormition of the Mother of God took place in December 1884, the Arrangement of the room was rather slow and was only completed by the end of the 1890s, the Main altar of the Church was consecrated in the name of the Dormition of the Mother of God. The side altars are built in 1892: the left - to the crucifixion of Jesus Christ and right - with the image of St. Joseph.

With the advent of Soviet power for the Church and the community in General has come the best of times. In 1921, the property was nationalized Catholic parish, including religious buildings and all the utensils. In 1938 the Church was finally closed, since then the building was used by various agencies. In 1978, the Church building was established concert organ. Today is an amazing organ hall of the regional Philharmonic society of the city of Irkutsk.

In 1998, the local authorities finally refused to return the Church to the Catholic community. As a result, after the founding of St. The throne of the diocese of St. Joseph, the city had built a new Catholic Cathedral of the Immaculate Heart of the blessed virgin Mary.