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From Rodovid EN

Lineage	Mordvinov
Sex	Male
Full name (at birth)	Afanassi Romanovitch Mordvinov
Parents ♂ Роман Іванович Одоєвський Мордвинов [Мордвинови]

Notes

Il fut le cousin d'Ivan Andreïevitch Mordvinov.

From grandparents to grandchildren