Kilka słów o rodowodzie kniaziów Jamontowiczów Podbereskich w świetle nowych źródeł

Thanks to the publication of the last will of Princess Zofia Fiodorowa Jamontowicz Podbereska of 1510, the author of the article attempts to explain certain issues connected with the genealogy of the Lithuanian knyaz family of Jamontowicz who resided in the eastern territories of the Grand Duchy of Lithuania. An important element of the work is the discovery of the first name of Zofia’s husband (Fiodor) – the penultimate male representative of the family (the father of the knyaz Siemion Jamontowicz Podbereski) and the fact that Fiodor’s daughter Julianna became a nun and later around 1539 the mother superior of the convent (hegumen) a er her marriage with Jacek Sieńkowicz had been nullified.