German physician, playwright, lyricist, pianist and composer, born & died in München.
Youth friend and personal physician to King Maximilian II of Bavaria.
Franz Lachner (1803-1890) and Konrad Kunz (1812-1875) have published several songs with L.Koch as librettist. Some sources identify L.Koch as Johann Franz Ludwig Koch (1791-1850), but there is enough evidence (period as well as recent) to believe that this must be Dr. (Karl) Ludwig Koch (1806-1888). [1][2]