Fürstenberg-Heiligenberg was a county and later a principality in southern Baden-Württemberg, Germany, located in the historical territory of Heiligenberg.
When Herman Egon of Fürstenberg-Heiligenberg was elevated to the estate of imperial princes (Reichsfürstenstand) in 1664, Fürstenberg-Heiligenberg was raised to a principality and existed as an imperially immediate territory.
Herman Egon's two surviving brothers, Francis Egon and Wilhelm Egon, were also titular Princes of Fürstenberg-Heiligenberg, but they never ruled the principality.
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