feb 24, 1680 - The German Duchy of Saxe-Coburg is divided by treaty among the sons of the late Ernest I, Duke of Saxe-Gotha, who had died in 1675. The oldest son, Frederick, receives Saxe-Gotha-Altenburg. The rest is divided among Albert (Duke of Saxe-Coburg); Bernhard (Saxe-Meiningen); Henry (Saxe-Römhild); Christian (Saxe-Eisenberg); Ernest (Saxe-Hildburghausen); and John Ernest (Saxe-Coburg-Saalfeld)