Karl Friedrich Charles Frederick, Duke of Holstein-Gottorp and Price of Sweden, historic engraving of 1899, Kiel, Schleswig-Holstein, North Germany Stock Photo - Alamy
John Adolphus, Duke of Schleswig-Holstein-Sonderburg-Plön - Wikiwand
File:David Richter d.y. - Karl Fredrik, Duke of Holstein-Gottorp - NMB 2137 - Nationalmuseum.jpg - Wikimedia Commons
Charles Frederick, 30.4.1700 - 18.6.1739, Duke of Holstein-Gottorp, full length, with his great-grandmother, Queen Hedvig Eleonora of Sweden, painting by David von Krafft, 1705 Stock Photo - Alamy
Charles Frederick of Holstein-Gottorp - Charles Frederick, Duke of Holstein-Gottorp - Wikipedia | Екатерина великая, Россия, Мужской костюм
Carl Frederick of Schleswig-Holstein-Gottorp (1700-1739) - Find a Grave Memorial
Philip, Duke of Holstein-Gottorp - Wikipedia
File:David von Krafft - Duke of Holstein-Gottorp, Karl Fredrik as a child - S 54 - Finnish National Gallery.jpg - Wikimedia Commons
Holstein-Gottorp, Georg Ludwig Duke zu - Project Seven Years War
37 Duke Of Holstein Gottorp Photos and Premium High Res Pictures - Getty Images
Charles Frederick, Duke of Holstein-Gottorp - Wikipedia
Karl Friedrich I, Duke of Schleswig-Holstein-Gottorp - Wikidata
Friedrich III, Duke of Holstein-Gottorp (1597-1659) - GAMEO
Karl Friedrich, Duke of Holstein-Gottorp Stock Photo - Alamy
Prince Albert, Duke of Schleswig-Holstein | Unofficial Royalty
European Heraldry :: Holstein-Gottorp
Friedrich VIII, Duke of Schleswig-Holstein | Unofficial Royalty
Frederick IV (1671-1702), Duke of Holstein-Gottorp, and his spouse Hedvig Sophia (1681–1708), Swedish princess - Wikidata
Frederick III, Duke of Holstein-Gottorp - Wikipedia
94 Duke Of Holstein Photos and Premium High Res Pictures - Getty Images
Adolf, Duke of Holstein-Gottorp - Wikipedia
Frederick III, Duke of Holstein-Gottorp - Wikiwand
