In the War of the Austrian Succession one of the major turning points was when Maria Theresa was crowned Queen of Bohemia, because this step strengthened the power of the Houseof Habsburg in Central Europe. For people who belonged to the Reformed Church in the Kingdom of Hungary, this meant that they had to live their lives under the rule of a Catholic monarch. Debrecen was the centre of the Reformed Church and the city prepared for this political situation: pastor Mihály Komáromi H. delivered a special sermon to celebrate the coronation. In this sermon he acknowledged the fact that the Habsburgs had right to the Hungarian throne and tried to use this political advantage to improve the situation of the Reformed Church. This sermon became so popular that a manuscript was made from it and it was a popular reading in the Reformed congregations of the countryside., Ádám Hegyi., and Obsahuje bibliografické odkazy