Ernest Constantine, Landgrave of Hesse-Philippsthal
| Ernest Constantine | |
|---|---|
| Landgrave of Hesse-Philippsthal | |
| Born | 8 August 1771 Philippsthal |
| Died | 25 December 1849 (aged 78) Meiningen |
| Spouse | Louise of Schwarzburg-Rudolstadt Caroline of Hesse-Philippsthal |
| Issue | Charles II, Landgrave of Hesse-Philippsthal |
| House | Hesse |
| Father | William, Landgrave of Hesse-Philippsthal |
| Mother | Ulrika Eleonora of Hesse-Philippsthal-Barchfeld |
Ernest Constantine (German: Ernst Constantin; 8 August 1771 – 25 December 1849) was Landgrave of Hesse-Philippsthal from 1816 until his death.