Back Хайнрих XX (Ройс-Грайц) Bulgarian Heinrich 20., 4. fyrste Reuss af Greiz Danish Heinrich XX. (Reuß-Greiz) German Enrique XX de Reuss-Greiz Spanish Heinrich XX Estonian Henri XX Reuss de Greiz French היינריך העשרים, נסיך רויס-גרייץ HE Enrico XX di Reuss-Greiz Italian ハインリヒ20世 (ロイス＝グライツ侯) Japanese Hendrik XX Reuß oudere linie Dutch
| Heinrich XX | |
|---|---|
| Prince Reuss of Greiz | |
 Lithograph by G. Weinhold, 1841. | |
| Prince of Greiz | |
| Reign | 1836 - 1859 |
| Predecessor | Prince Heinrich XIX |
| Successor | Prince Heinrich XXII |
| Born | 29 June 1794 Offenbach, Landgraviate of Hesse-Darmstadt |
| Died | 8 November 1859 (aged 65) Greiz, Principality of Reuss-Greiz |
| Spouse | Princess Sophie of Löwenstein-Wertheim-Rosenberg Princess Caroline of Hesse-Homburg |
| Issue | Princess Christiane Prince Heinrich XXI Prince Heinrich XXII, Prince of Reuss-Greiz Prince Heinrich XXIII Princess Marie, Countess of Ysenburg and Büdingen-Meerholz |
| House | House Reuss of Greiz |
| Father | Heinrich XIII, Prince Reuss of Greiz |
| Mother | Princess Wilhelmine Louise of Nassau-Weilburg |
Heinrich XX, Prince Reuss of Greiz (German: Heinrich XX Fürst Reuß zu Greiz; 29 June 1794 – 8 November 1859) was Prince Reuss of Greiz from 1836 to 1859.