Frederick Francis I, Grand Duke of Mecklenburg-Schwerin ( 10 December 1756 – 1 February 1837 ) ruled over the German state of Mecklenburg-Schwerin, first as Duke ( 1785 – 1815 ), and then as Grand Duke ( 1815 – 1837 ).
Frederick Francis I, Grand Duke of Mecklenburg-Schwerin ( father of 67 )
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