Keywords: Sizzo von Schwarzburg.jpg Sizzo von Schwarzburg 1860-1926 last heir presumptive to the German principalities of Schwarzburg-Rudolstadt and Schwarzburg-Sondershausen F-U Wrangel Les maisons souveraines de l'Europe Stockholm 1899 1899 or earlier Creator Nicola Perscheid PD-old-70-1923 House of Schwarzburg Nicola Perscheid |