EN
The church of the Nativity of the Holy Virgin Mary in Mokotow (a district of Warsaw) is an interasting example of spatial transformations of sacral objects conducted at the turn of the nineteeenth century. The specificity of these processes consited of their sui generis arbitrariness which, to a certain extent, was the outcome of political conditions; in Polish history, they influenced not only church constructions. Problems of a purely theoretical nature appear to have been decisive. In an analysis of the consecutive stages of the alterations in the church in Mokotow, one can easily notice a very slight impact of conservation doctrine not solely in the last century but also in the inter-war period. True, a single example does not create foundations for generalizations but the presented methods exemplify operations applied by the majority of architects dealing with the rebuilding of Catholic churches in the Kingdom of Poland.