John Ernest IV
Duke of Saxe-Coburg-Saalfeld
John Ernest IV
John Ernest IV (German: Johann Ernst; 22 August 1658–17 February 1729) was Duke of Saxe-Saalfeld from 1680 to 1729 and the founder of the House of Saxe-Coburg-Saalfeld.
Read on Wikipedia · Image Wolfgang Philipp Kilian, Public domain
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