Daniel Friedrich Sotzmann

Terrapene carolina, by Friedrich Zehelein Daniel Friedrich Sotzmann

Friedrich II, Duke of Sachsen-Gotha-Altenburg, between 1708-32 Christian Schilbach

Portrait of Daniel Souterius Jacob Matham

Portrait of Christian Friedrich Daniel Schubart, 1790 Anonymous

Portrait of Friedrich Nietzsche, 1895 Anonymous

Friedrich III, Herzog of Saxe-Gotha-Altenburg, 1720 Christian Schilbach

Fredrick Great Concert At Sanssouci Adolph Menzel

Christian Friedrich, Baron Stockmar, engraved by Thomas Fairland Franz Xaver (after) Winterhalter

Friedrich I, Duke of Sachsen-Gotha-Altenburg, 1711 Christian Schilbach

Friedrich Schiller, 1786 German School

Friedrich Wilhelm von Altenburg, Duke of Saxony German School

Zwingerthurm and Sophien-Kirche, Germany Johann Friedrich Stiehm

Portrait of Adrian Daniel de Vries Abzn Petrus Johannes Arendzen

Professor Friedrich Mueller Louis Kolitz

Concert for flute with Frederick the Great in Sanssouci, 1852 Adolph Friedrich Erdmann von Menzel

The Weimar City Castle. From: Thüringen und der Harz.. by Friedrich von Sydow, 1839 Anonymous

Portrait of Friedrich Nietzsche, c.1906 Edvard Munch

Christian Friedrich Schonbein, German chemist, c1898 Unknown

Johann Friedrich I, Elector and Duke of Saxony, 1543 Georg Pencz

The Zionist Protocols: the program of the international secret government by Theodor Fritsch, 1924 Anonymous

Karl Friedrich Schinkel, 1834 Pierre Jean David d'Angers

Album of Railways in the Netherlands Indies Indonesia, Carl Emanuel Friedrich Lang Woodbury & Page

Portrait of Daniel Souterius Jacob Matham

Johann Ernst, Duke of Saxe-Eisenach, 1666 Christian Richter

Frederic Chopin at the Grand Piano January Suchodolski

Portrait of Friedrich Heinrich 1830 Emile Jean Horace Vernet

Friedrich IV, Duke of Sachsen-Gotha-Altenburg Giuseppe or Josef Grassi

Portrait of Ewald Friedrich Graf von Hertzberg, 1794 Anonymous

Flute Concert with Frederick the Great in Sanssouci, 1850-1852 Adolph Friedrich von Menzel

Friedrich August Kekule von Stradonitz, German organic chemist, c1885 Unknown

Self portrait with the Foster Daughter Lina Groger and the painter Heinrich Jakob Aldenrath, c.1801-15 Friedrich Carl Groger

Ernst Florens Friedrich Chladni, German physicist, c1895 Unknown

View of the Old Market and the Front Gate of the Schloss Sanssouci, 1773 Johann Friedrich Meyer

Portrait of Friedrich Nietzsche Anonymous

Monument to Henry Hooft Danielsz., 1794 Hermanus Fock

Anna Sofia, princess of Denmark, electress of Saxony, with her sons Johann Georg and Friedrich August, c.1680 David von Krafft