Kossakowski (Lithuanian: Kosakovskiai)[a] was a Polish–Lithuanian noble family originated from Mazovia.[1][2]
They were first mentioned in the 13th century and initially settled in Ciechanów County, from where they branched out to the Grand Duchy of Lithuania, Podolia, Volhynia, and Livonia.[1]
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- ^ a b Klempert 2014, pp. 171–172.
- ^ Mazur, Karol (2006). W stronę integracji z Koroną: sejmiki Wołynia i Ukrainy w latach 1569-1648. Neriton. p. 212. ISBN 9788389729804.