In 1833 Eybler had a stroke while conducting Mozart's Requiem and thereafter could not fulfill his duties at the Court. For his service to the Court, Eybler was raised to the nobility in 1835 and was known henceforth as Joseph Leopold, Edler von Eybler. He died in Vienna on 24 July 1846. Eybler's main compositions were sacred music, including oratorios, masses, cantatas, offertories, graduals, and his requiem. His other works include an opera, instrumental music (especially his string quintets), and songs. Of special note may be the Clarinet Concerto (HV160) he wrote most probably for "Mozart's" clarinetist Anton Stadler. A recording of this concerto by Dieter Klöcker is available on the Novalis music label.