General Hippolyte-Marie-Guillaume de Rosnyvinen de Piré
Born: March 31, 1778
Died: July 20, 1850
Place of Birth: Rennes, Ille-et-Vilaine
Cause of Death: Natural causes
| Battle | Unit | Rank |
| Austerlitz | Capitaine | La Grande Armée - Staff |
| Eylau | Chef d'escadron | 10th Hussars |
| Somosierra | Colonel | La Grande Armée - ADC to Berthier |
| Eckmühl | Général de brigade | III Corps (Davout) - 2nd Light Cavalry Division (Montbun) - 2nd Brigade |
| Aspern-Essling | Général de brigade | Cavalry Reserve (Bessières) - 1st Light Cavalry Division (Lasalle) |
| Wagram | Général de brigade | (Lasalle) |
| Brienne | Général de division | (Grouchy) |
| La Rothière | Général de division | (Milhaud) |
| Waterloo (Mont St. Jean) | Général de division | II Corps (Reille) - 2nd Light Cavalry Division |
As a noble, Piré emigrated from France during the Revolution and even took up arms against the Revolutionary governments. When Napoleon took power, Piré took advantage of the general amnesty and returned to serve Napoleon faithfully.
Sources: Haythornthwaite (Who Was Who), Six (Dictionnaire Biographique)
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