Diogo, Duke of Viseu
| Diogo | |
|---|---|
Duke of Viseu  | |
Diogo, Duke of Viseu  | |
| Duke of Viseu and Beja | |
| Reign | 1472 - 1484 | 
| Predecessor | João, Duke of Viseu | 
| Successor | Manuel I of Portugal | 
| Born | 1450 | 
| Died | 1484 | 
| House | Aviz | 
| Father | Ferdinand, Duke of Viseu | 
| Mother | Beatriz of Portugal | 
Infante Diogo of Viseu (1450–1484) was the second son of Ferdinand, Duke of Viseu, and his wife Beatriz, Duchess of Viseu.