l i n k s Siblings: Karol Ernst Biron von Curland Piotr Biron von Curland Jadwiga Biron von Curland Born: 4 VII 1727 r Married 25 XI 1759 r to Aleksander Czerkasow Died: 31 III 1793 r Reference: Minakowski - Wielka Genealogia.

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