When copying data from this family tree, please include a reference to the origin: Maryna Zhubryk, "Olga's tree", database, Genealogy Online (https://www.genealogieonline.nl/olgas-tree/I502233.php : accessed May 5, 2025), "Леонтий Федорович Федоров сын родоначальник рода Леонтьевых (1520-????)".
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