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From Rodovid EN

Lineage	Ostrowscy
Sex	Male
Full name (at birth)	Krzysztof Ostrowski
Parents ♀ Alicja Bartnik (Ostrowska) [Bartnik] ♂ Тадэуш Астроўскі [Астроўскія]

Events

child birth: ♂ Piotr Ostrowski [Ostrowscy]

marriage: ♀ Lucyna ? (Ostrowska) [?]

From grandparents to grandchildren