Bille-Hansen, A. C.; Holck, Harald, eds. (1894) [1st pub.:1801]. Statshaandbog for Kongeriget Danmark for Aaret 1894 [State Manual of the Kingdom of Denmark for the Year 1894] (PDF). Kongelig Dansk Hof- og Statskalender (in Danish). Copenhagen: J.H. Schultz A.-S. Universitetsbogtrykkeri. p. 5. Retrieved 16 September 2019 – via da:DIS Danmark.
hathitrust.org
babel.hathitrust.org
"Schwarzer Adler-orden", Königlich Preussische Ordensliste (in German), vol. 1, Berlin, 1886, p. 9{{citation}}: CS1 maint: location missing publisher (link)
meijiseitoku.org
刑部芳則 (2017). 明治時代の勲章外交儀礼(PDF) (in Japanese). 明治聖徳記念学会紀要. p. 149.
Bille-Hansen, A. C.; Holck, Harald, eds. (1894) [1st pub.:1801]. Statshaandbog for Kongeriget Danmark for Aaret 1894 [State Manual of the Kingdom of Denmark for the Year 1894] (PDF). Kongelig Dansk Hof- og Statskalender (in Danish). Copenhagen: J.H. Schultz A.-S. Universitetsbogtrykkeri. p. 5. Retrieved 16 September 2019 – via da:DIS Danmark.
