On land donated by her brother, Wenceslaus I, King of Bohemia, she founded the Hospital of St. Francis ("circa" 1232–33) and two friaries for the Franciscan friars, who had just come to Bohemia at her brother's invitation. Through them, Agnes learned of Clare of Assisi and her Order of Poor Ladies, the monastic counterpart of the friars. She began a correspondence with Clare (which lasted for over two decades), which led to Clare's sending five nuns from the monastery in Assisi to Prague to begin a new house of the order. This was the first Poor Clare community north of the Alps.