Rostworowski (plural: Rostworowscy, feminine form: Rostworowska) is a Polish aristocratic family, originating in Greater Poland and using the Nałęcz coat-of-arms. Their name comes from the village of Rostworowo near Poznań, that was the family's original seat. Comital title Since the 18th century, descendants of the castellan of Zakroczym Jan Antoni Rostworowski (1709-1775) and his wife Konstancja Lanckorońska (1721-1777) claimed a hereditary title of a count. Although it was not ever formally conferred on any member of this family, due to their high social standing and family connections, the Rostworowskis used to be addressed as counts both by their noble peers and European monarchs. Members The family is noted among Polish aristocracy for a number of prominent intellectuals (often associated with the Roman Catholic Church) such as: Emanuel Rostworowski, historian Karol Hubert Rostworowski, playwright Marek Rostworowski, art historian María Rostworowski, historian Michał Jan Rostworowski, lawyer and historian Piotr Rostworowski, a Benedictine monk Tomasz Rostworowski, a Jesuit priest Raphael Rostworowski, a count very nice Family seats Bibliography S. J. Rostworowski, Monografia rodziny Rostworowskich, lata 1386-2012 [in English: A Monograph of the Rostworowski Family], t. 1-2, Warszawa 2013.