Ernest Constantine was Landgrave of Hesse-Philippsthal from 1816 until his death. Wikipedia
Born: August 8, 1771, Philippsthal, Germany
Died: December 25, 1849 (age 78 years), Meiningen, Germany
Grandchildren: Ernest, Landgrave of Hesse-Philippsthal and Karl Prinz von Hessen-Philippsthal