The Saxe-Ernestine House Order (German: Sachsen-Ernestinischer Hausorden) was an order of merit instituted by Duke Friedrich of Saxe-Altenburg, Duke Ernst I of Saxe-Coburg-Gotha, and Duke Bernhard II of Saxe-Meiningen on 25 December 1833 as a joint award of the Saxon duchies.
Ernest I, Duke of Saxe-Gotha (1601–1675) had married Elisabeth Sophie, the only child of Johann Philipp, Duke of Saxe-Altenburg and Gotha (1597–1638), the eldest son of Frederick William I. When Elisabeth Sophie's cousin Frederick William III, Duke of Altenburg, died unmarried 1672, the entire first Altenburg line became extinct in male line, opening a succession strife.
September 22, 1875 – Birth of Adelheid of Schaumburg-Lippe, Duchess of Saxe-Altenburg, wife of Ernst II, Duke of Saxe-Altenburg at Ratibořice Castle in Bohemia, now in the Czech Republic Full name: Friederike Adelheid Marie Luise Hilda Eugenie In 1898, Adelheid married the future Ernst II, Duke of Saxe-Altenburg and the couple had four children.
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