14/01/2026
Ladies and Gentlemen, let me introduce, The Kliszewicz noble family emerged in 15th century Poland, specifically in the Sanock region near the Polish-Hungarian border. Their nobility began in 1402 when King Władysław II Jagiełło granted three cousins from Ulich land along the San River in exchange for military service. The first documented Kliszewicz was Grits Klisevits in 1469, likely descended from one of the original brothers.
The family owned a folwark (manor farm) in the Nowogrudok region of the Polish-Lithuanian Commonwealth. After Poland's partition in the late 18th century, the Kliszewicz family became part of the Russian Empire's nobility, specifically in the Volhynia Governorate, as confirmed by the 1906 Noble Family Register in Zhytomyr.
Official Polish heraldic registers confirm that the noble Kliszewicz family is recognized as bearers of the prestigious Jastrzębiec coat of arms, establishing their place among Poland's ancient aristocratic lineages, as documented in "Herbarz szlachty polskiej, 1932, vol. VII."