Pedro Piernas
Pedro Piernas  | |
|---|---|
| 2nd Commandant of Upper Louisiana | |
| In office 1768–?  | |
| Preceded by | Francisco Rui | 
| Succeeded by | Louis Saint-Ange de Bellerive | 
| 1st Lieutenant Governor of Upper Louisiana | |
| In office 1770–1775  | |
| Succeeded by | Francisco Cruzat | 
| Personal details | |
| Born | Unknown | 
| Died | Unknown | 
| Profession | Soldier, lieutenant governor of Illinois and commander of St. Louis | 
Pedro Joseph Piernas was a Spanish military official who rose to the rank of commandant in 1768 and served as Lieutenant governor of Illinois between 1770 and 1775.