Gules, a horse's head couped or Coat of Arms of the Duchy of Saxe-Lauenburg (1815-66), during personal union with the Danish monarchy. On 6 December 1815 Frederick VI of Denmark issued his Asseveration Act (Versicherungsacte) affirming the given laws, the constitution and the Ritter-und-Landschaft of Saxe-Lauenburg. In 1816, his administration took possession of the duchy. In 1866, Saxe-Lauenburg joined the North German Confederation. The coat of arms after 1866 Prussia added a bordure gyronny in sable and argent, its official colours, and showed the horse head in argent. (w:Herzogtum Lauenburg) Coat of Arms of the Duchy of Saxe-Lauenburg after 1866, under Prussian rule
Own work, using horse from File:Blason de la ville de Hagen (Moselle).svg by User:Spax89
Lobsterthermidor (talk) 12:46, 10 July 2023 (UTC)