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From Rodovid EN

Lineage	Роппы
Sex	Male
Full name (at birth)	Оттомар Христофоров сын фон дер Ропп
Parents ♂ Krzysztof von der Ropp [Roppowie] ♀ Sophie von Lambsdorff (von der Ropp) [Lambsdorff]

From grandparents to grandchildren