Karl Franz Gruber

A Ring-Necked Parakeet Karl Franz Gruber

Portrait of Karl Thomas and Franz Xaver, the two sons of Wolfgang Amadeus Mozart, 1798 Hans Hansen

Portrait of Karl Berckmuller Franz Xaver Winterhalter

Boy with Grapes; Knabe mit Trauben, 1903 Franz von Stuck

The Serving Maid Eduard Karl Franz von Gebhardt

Franz Josef at the Opera, 1883 Carl Kahler

Portrait of Karl Marx Anonymous

Portrait of Karl Friedrich Schinkel, 1836 Franz Krüger

Portrait of the Chancellor of the Russian Empire Count Karl Robert Nesselrode,, 1840s Franz Kruguer

Franz Anton Mesmer aged 72, 1847 Paul Carpentier

Portrait of a Boy Eduard Karl Franz von Gebhardt

Franz Xaver Mozart, later known as Wolfgang Amadeus, younger son of Wolfgang Amadeus Mozart, 1825 Karl Gottlieb Schweikert

Portrait of Emperor Franz I, 1752 Johann-Gottfried Auerbach

Crucifixion, 1873 Eduard Karl Franz von Gebhardt

Portrait of Composer Franz Schubert Anonymous

Franz Pforr, c.1810 Friedrich Overbeck

Schubert and the language of birds, 2000 Frances Broomfield

Friedrich Engels and Karl Marx in Office Anonymous

Portrait of Franz Schubert Anonymous

Portrait of Franz Schubert Anonymous

Portrait of Karl Ritter Anonymous

Excursion of the Schubertians from Atzenbrugg to Aumuhl, with Franz Peter Schubert standing to the left with the artist, 1820 Leopold Kupelwieser

Franz Peter Schubert, 1825 Wilhelm August Rieder

Friedrich Engels and Karl Marx During Press Operations Anonymous

Portrait of Dr. Karl Joseph Meyer, 1844 Joseph Kriehuber

Portrait of Karl Marx, 1857 French School

Franz Schubert Wilhelm August Rieder

Portrait of Carl Graf Firmian at the piano, formerly thought to be Wolfgang Amadeus Mozart Franz Thaddaus Helbling

Karl Wilhelm Ferdinand Gerrit Kamphuysen

Franz Schubert, 1825 Wilhelm August Rieder

Portrait of Karl Marx, before 1875 Anonymous

Portrait of Franz Schubert Anonymous Anonymous

Ball Games at Atzenbrugg with Franz Schubert and friends seated in the foreground Leopold Kupelwieser

General E. Burd Grubb, c.1898 Thomas Cowperthwait Eakins

Gottlieb Daimler and Karl Benz, German motor industry pioneers, 1961 Unknown

Jakob Ludwig Karl Grimm, German author, philologist and mythologist Anonymous