Pyotr Stavasser 1816–1850 Source: Wikimedia Commons People from the Same Era William Thomas Mercer 1821–1879 Apollinaire de Kontski 1825–1879 composer, music educator, pedagogue, university teacher, violinist Poznań Jules Simoneau 1820–1908 Patrick Edward Connor 1820–1891 journalist, military officer County Kerry Julie Pfannenschmidt 1806–1868 writer Kiduliai Alessandro Duroni 1807–1870 photographer Canzo