In August 1886 Julia Ledóchowska entered the Ursuline Order in Cracow. On April 17, 1887 she got the Ursuline habit and received the name Maria Ursula. Two years later, on April 28, 1889 she took the solemn vows and began to work as a teacher and educator in school and boarding house of the Ursuline Convent. She also began to develop her painterly talent and in 1899 she decorated the convent chapel walls inside with paintings. In 1904 mother Ursula was elected the Mother Superior of the Convent and initiated the first in Poland hall of residence for young women studying at Jagiellonian University. In 1907, with the blessing of Pope Pius X, she went to Saint Petersburg accompanied by two sisters in order to administer St. Catherine’s Polish boarding high school for girls.

The relics of St. mother Ursula can be found in a chevet inside the chapel of the Ursulines of the Roman Union in Cracow.