The Church of St John of Nepomuk in Opava-Kylešovice was built in 1816–1818 (using municipal funds) so that local people would no longer have to travel to Opava for religious services – and also due to the inadequate capacity of the existing chapel in Kylešovice. However, in 1945 the church was damaged by grenades, and it was demolished in the following year. Several parts of the interior fittings were rescued from the rubble, among them a large proportion of the altar. In 2016 the first two parts of the altar – wooden sculptures of two polychrome angels – were surveyed and fully restored for purposes of conservation. The paper summarizes the most important events connected with the existence of the Church of St John of Nepomuk, gives an overview of the parts of the altar that have survived up to the present day, and documents the surveying and complete restoration of the two polychrome statues that originally formed part of the altar.