Johann Berthold von Höffer (born in
Ljubljana on 24 July 1667 - died 1718) was a nobleman from Ljubljana, and an amateur Slovenian composer.[1] He founded The Academia Philharmonicorum, Ljubljana in 1701, and primarily composed Latin oratorios.[2] His artistic name in the Academia was Operose Devius.[3]
^George J. Buelow A history of baroque music 2004 p436
^Oto Luthar The land between: a history of Slovenia 2008 p231
^Elisabeth Theresia Fritz-Hilscher,
Theophil AntonicekDie Wiener Hofmusikkapelle: Krisenzeiten der Hofmusikkapellen 2006 p89 "Die Seele der Unternehmung war Johann Berthold Höffer, ein Krainer Patrizier und erster Direktor der Vereinigung mit dem Akademie-Namen Operose Devius (der Einsame)."