A Dictionary of Music and Musicians (1900)
“ After one or two more changes he at length became Capellmeister to Prince Grassalkowitz, after whose death he lived comfortably in Vienna, enjoying a considerable reputation as a teacher and composer. The sinecure post of doorkeeper to the Emperor was conferred upon him, and in 1818 he succeeded Kozeluch as Court Capellmeister and Composer, in which capacity he accompanied the Emperor Francis to France and Italy. ”
