found: nuc88-19075: His Biographie W.A. Mozarts, 1984(hdg. on FMU rept.: Nissen, Georg Nikolaus von, 1761-1826; usage: Georg Nikolaus von Nissen)
found: OCLC data base, 1/23/92(hdg.: Nissen, Georg Nicolaus von, 1761-1826; usage: Georg Nikolaus von Nissen; Georg Nikolaus Nissen; G.-N. de Nissen)
found: NUC pre-56(hdg.: Nissen, Georg Nicolaus von, 1761-1826)
found: New Grove(Nissen, Georg Nikolaus; b. Haderslev, 1/22/1761; d. Salzburg, 3/24/1826; Danish diplomat and music historian)
found: Sjøqvist, V. Twice perfectly happy, 1991:p. 37 (Georg Nikolaus Nissen)
found: Schurig, Arthur. Wolfgang Amadeus Mozart, 1913:title page ("auf Grund der vornehmlich durch Nikolaus von Nissen gesammelten biographischen Quellen und der Ergebnisse der neuesten Forschung dargestellt von Dr. Arthur Schurig")
found: Danish Wikipedia, Jan. 20, 2016(Georg Nicolaus Nissen, born 22 January 1761 in Haderslev, died 24 March 1826 in Salzburg; Danish diplomat, married to Mozart's widow Constanze Mozart; studied in Copenhagen and published a few poems; entered foreign service in 1790, was stationed in Regensburg and Vienna; styled "von Nissen" from 1800; from approximately 1798, lived with Constanze Mozart in Vienna, but they only married on 26 June 1809 in Bratislava (having fled Vienna to escape Napoleon's troops); the couple moved to Copenhagen in 1810, where Nissen worked as a newspaper censor, and to Salzburg in 1824, where Nissen began the first major biography of Mozart on the basis of the Mozart family correspondence; the work was unfinished at his death, and was completed by others; his epitaph reads : "Georg Nicolaus von Nissen, Königl. Dänischer wirklicher Etats-Rath. Ritter des Dannebrog Ordens. Gatte der Wittwe Mozart")
found: Wikipedia, Jan. 20, 2016(Georg Nikolaus von Nissen (sometimes Nicolaus or Nicolai; January 22, 1761-March 24, 1826); Danish diplomat and music historian)
