ARV947419: Crown Prince Wilhelm, Cecilie, NPG, Princes, Sons, German Photographer, (20th Century) / Bridgeman Images

ARV947428: Kaiser Wilhelm II, two eldest sons, Liersch 3686, German Photographer, (20th Century) / Bridgeman Images

ARV947432: Prince and Princess August Wilhelm, Prussia, NPG 4007, German Photographer, (20th Century) / Bridgeman Images

ARV947444: Graz Styria, Emperor Franz Josef I, Rathaus / Bridgeman Images

QGA936396: Adelbert von Chamisso (1781 – 1838), German poet and botanist, with pipe / Bridgeman Images

QGA936458: Cedar / Bridgeman Images

QGA936518: Virgin Mary, portrait, Our Lady of Sorrows, the Sorrowful Mother or Mother of Sorrows, Our Lady of the Seven Dolours / Bridgeman Images

QGA936526: Louis Agassiz (1807–1873), Swiss-U.S. zoologist, glaciologist, and geologist / Bridgeman Images

QGA936532: Afonso de Albuquerque (1453 – 1515), Portuguese fidalgo, or nobleman, a naval general officer, second governor of Portuguese India / Bridgeman Images

QGA936552: Count Gyula Andrássy (1823–1890), Hungarian statesman / Bridgeman Images

QGA936590: Antoine César Becquerel (March 7, 1788 – January 18, 1878), French scientist, French School, (19th century) / Bridgeman Images

QGA936619: Jan van Eyck (before c. 1395 – before July 9, 1441), Flemish painter / Bridgeman Images

QGA936627: Count Alessandro di Cagliostro (2 June 1743 – 26 August 1795), Italian adventurer / Bridgeman Images

QGA936630: John Calvin (1509–1564), theologian, founder of Calvinism / Bridgeman Images

QGA936639: Christian IV (1577 – 1648), king of Denmark-Norway / Bridgeman Images

QGA936671: Joseph von Eichendorff (1788 - 1857), German poet and novelist / Bridgeman Images

QGA936686: Bernard le Bovier de Fontenelle (1657–1757), a French writer / Bridgeman Images

QGA936696: Giotto di Bondone (ca. 1267 – 1337), Italian painter and architect / Bridgeman Images

QGA936727: Jan Hus (1372 - 1415), Czech Catholic priest, philosopher, reformer, and master at Charles University in Prague / Bridgeman Images

QGA936735: Angelika/Angelica Kauffmann (1741 –1807), Swiss-Austrian painter / Bridgeman Images

QGA936740: Freiherr Adolph Knigge (1752 – 1796), German writer and Freemason / Bridgeman Images

QGA936777: Còsimo di Giovanni degli Mèdici (1389 – 1464), first of the Medici political dynasty / Bridgeman Images

QGA936795: Nero (37 - 68), Roman emperor / Bridgeman Images

QGA936799: Jacques Offenbach (1819–1880), French composer / Bridgeman Images

QGA936813: Alexander Sergejewitsch Puschkin (1799–1837), Russian poet / Bridgeman Images

QGA936816: George Sand (engraving) / Bridgeman Images

QGA936859: Hippopotamus / Bridgeman Images

QGA936892: Sea urchins: Anatomy / Bridgeman Images

QGA936908: Itch mite / Bridgeman Images

QGA936937: Arctic landscape and Inuit huts with Sun dog / Bridgeman Images

QGA936954: Samuel F. B. Morse (1791 - 1872), creator of a single-wire telegraph system and Morse code, French School, (19th century) / Bridgeman Images

QGA936966: Marguerite de Navarre, Marguerite d'Angoulême, Marguerite de Valois, or Marguerite de France, (1492 – 1549), queen of Navarre / Bridgeman Images

ARV947469: Marquis de Villalobar, Minister of Spain, Portrait / Bridgeman Images

ARV947486: Artist Chodowiecki, Frederick the Great, Sanssouci / Bridgeman Images

ARV947528: Photo Halle an der Saale, Parade, Wilhelm II, Guy Kern, German Photographer, (20th Century) / Bridgeman Images

ARV947544: Artist Tenno Meiji Mutsuhito, Emperor of Japan / Bridgeman Images