Johann Knapp

Johannes Kepler, German astronomer, early 17th century, (c1903) Unknown

Johannes Erasmus Kindermann Daniel (after) Preissler

Johannes Kepler, German astronomer, c1600, (c1870) Unknown

Portrait of John the Constant of Saxony Lucas the Elder Cranach

Portrait of Bernard Knipperdolling Frans Carelse

Johann I, the Constant, Elector of Saxony, 1532-33 Lucas Cranach the Elder

Portrait of Johannes Bugenhagen Lucas Cranach the Elder

Jeanne Kéfer Fernand Khnopff

Portrait of Constantijn Huygens, Poet Jan Maurits Quinkhard

Portrait of the composer John Field, 1834 Anonymous

Portrait of Johan Ernst I, Count of Nassau-Siegen Workshop of Jan Antonisz van Ravesteyn

Bach, Johann Sebastian (1685-1750). German composer. Anonymous

Johannes Hoornbeeck Jonas Suyderhoff

Portrait of Archduke John of Austria, 1827 Anonymous

Portrait of Sonja Knips, 1898 Gustav Klimt

Portrait of John I the Steadfast, Elector of Saxony, c.1533 Lucas the Elder Cranach

Johann Michael Haydn, brother of the composer Franz Joseph Haydn Austrian School

Duke John I of Brabant Anonymous

Portrait of Johann Kaspar Lavater Anonymous

Portrait of Johann Friedrich the Magnanimous Lucas Cranach the Elder

Portrait of Johann Hunyadi, Second Half of the 17th century Anonymous

Johanna Rosine Wagner, née Pätz, Early 19th cen Anonymous

Portrait of Johan de Witt, Grand Pensionary of Holland Jan Maurits Quinkhard

Portrait of John II, Count Palatine of Zweibrücken Anonymous

Portrait of Johan Willem van Kleef Johannes Janssonius

Count Jan (Johann) IV of Nassau and His Wife Maria, Countess of Loon and Heinsberg, ca 1530 Bernaert van Orley

John Frederick I, Elector of Saxony, 1526 Anonymous

Portrait of Johanna Ferdinanda van Collen, Wife of Salomon Rendorp Johann Friedrich August Tischbein

Portrait of Jan the Younger, Count of Nassau-Siegen, Count John VIII of Nassau-Siegen Workshop of Jan Antonisz van Ravesteyn

Portrait of Count Wenzel Anton Kaunitz-Rietberg, 1861 Anonymous

Johannes Brahms Anonymous

Johan Jacob Krohn as a child, 1846 Christen Schjellerup Kobke

Kronungsmarsch aus dem Propheten, handwritten sheet music Anonymous

Portrait of Maurice Joachim von Kropff Jan de Groot Pz.

Portrait of a Recorder Player Johann Kupezky or Kupetzky

Portrait of Johannes Brahms Anonymous