Her mother did not understand, and grudgingly arranged a position for Osanna as a servant to the wealthy Catholic Buća family, who allowed the girl as much time as she wished for church visits. In Cattaro, Osanna abandoned Eastern Orthodoxy and converted to Roman Catholicism, and took the name Katarina (Catherine Cosie).
Her mother's inability to grasp the situation led to a reluctant arrangement for Osanna to serve the wealthy Buća family, who granted her the freedom to visit church as she saw fit. In Cattaro, Osanna abandoned Eastern Orthodoxy and adopted Roman Catholicism, renaming herself Katarina (Catherine Cosie).