Nicolas-Frédéric Freudenreich, born in Bern in 1776 to Christoph Friedrich Freudenreich and Catherine Hortin, was a member of the Swiss regiment commanded by Ferdinand de Roverea (1763-1829), whose memoirs record the events of the Revolution in Switzerland, the campaign of 1799, the feats of Marshal Suvorov and the character of generals such as Archduke Charles of Austria and Pedro Caro, Marquis de La Romana (F. de Roverea, Mémoires, Bern, 1848). The regiment was in the pay of King George III of Britain, and fought for the Allies in the Napoleonic Wars. Freudenreich was afterwards (1830-1850) in the service of the King of the Two Sicilies, in Naples, and was awarded the Order of Saint George of the Reunion by Ferdinand II in 1849.
A later oil on canvas portrait of Freudenreich was sold Christie's, London, 9 December 2009, lot 191.