Ludvig Nobel

Ludvig Immanuel Nobel ( ; ; ; 27 July 1831 – 12 April 1888) was a Swedish-Russian engineer, a noted businessman and a humanitarian. One of the most prominent members of the Nobel family, he was the son of Immanuel Nobel (also an engineering pioneer) and Andriette Nobel, and the older brother of Alfred Nobel (founder of the Nobel Prize). With his brother Robert, he operated Branobel, an oil company in Baku, Azerbaijan which at one point produced 50% of the world's oil.