This article presents the history of the Discalced Carmelites in Poland from the foundation of their first monastery in Krakow (1605) to the outbreak of the Swedish War (1655). The war, which had engulfed the eastern territories of the Polish-Lithuanian Commonwealth in 1648, spread to the rest of the country in 1655, wreaking havoc everywhere and exacerbating the economic crisis that had begun much earlier. The war in the Ukraine affected only a few monasteries in the eastern territories, which did not play an important role in the life of the province. The Swedish War caused material damage to all the monasteries in central Poland. Monastic life was disorganised. Monks left their monasteries and sought refuge in safe places. The biological losses of the state caused by the wars were also reflected in the number of applications to the Order. In the second half of the 17th century they were less numerous than in the first half. The development of the province came to a standstill.