Paulius Vaniuchinas' lecture presents the genealogy of the family of Samogitian Bishop Motiejus Kazimieras Valančius, reconstructed by the lecturer based on data from the church registers of Salantai (with Kalnalis filial) and Kartena parishes. The lecture is part of the event cycle for the new exhibition "Motiejus Wiskupas Kauni" opened at the Kaunas Archdiocese Museum.