Werner von Siemens, German inventor and industrialist, born on December 13, 1816, founder on October 12, 1847 of Siemens AG, retired in 1890, died on December 6, 1892.
See also his brothers Sir William Siemens (1823-1883) and Carl von Siemens (1829-1906), sons Arnold von Siemens (1853-1918), Wilhelm von Siemens (1855-1919), and Carl Friedrich von Siemens (1872-1941), his nephews Hermann von Siemens (1885-1986), Ernst von Siemens (1903-1990), and Peter von Siemens (1911-1986)
Siemens' name has been adopted as the SI unit of electrical conductance, the siemens.