In the middle ages, Clarissine monasteries only existed in two places of what is the present-day Slovakia – in Bratislava and Trnava, The present study summarizes and analyses the current knowledge of the architectural development of both monasteries in middle ages. Particular attention is paid to the process by which the monasteries were established, the interpretation of which has a significant impact on the interpretation of the initial stages of construction of the monasteries as well as their artistic and historical evaluation.