The history of the church of Łódź does not have a rich bibliography. The Universi-ty of Łódź created after World War II did not undertake research on the issue of reli-giousness and the functioning of the local church. The existing gap was filled by the clergy, who acquired their academic skills at the University of Warsaw, the Catholic University of Lublin and the Academy of Catholic Theology in Warsaw. Their re-search was mainly focused around three problems. The first one was the history of the Catholic Church in Poland, especially the Old Poland. The second, richest in pub-lished works, was the history of the regional church. The published works concerned the history of various church institutions and parishes. The last problem is connected with hagiographic works presenting the life of saints, the blessed and the servants of God in the Łódź region.