The following article analyses the artistic history, that is, the establishment and functioning of the Church of the Conversion of St Paul the Apostle in Kraków, which is an important monument of modern sacred architecture in Poland. The purpose of the paper is to explore the history of the church, taking into account the artistic context of its creation and functioning. The motivation for this research is the momentous significance of the church as a unique example of Baroque sacred architecture and the need to more fully understand its history and artistic value.