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From Rodovid EN

Lineage	Gruszeccy
Sex	Male
Full name (at birth)	Krzysztof Gruszecki
Parents ♂ Пётр Грушецкий [Грушецкие] ♀ Анна Ярошевская (Грушецкая) [Ярошевские]

From grandparents to grandchildren