| Consort: | yes |
| Ermesinda | |
| Succession: | Queen consort of Aragon |
| Full Name: | Ermesinda (born Gerberga) |
| Reign: | 1036–1049 |
| Spouse: | Ramiro I of Aragon |
| Issue: | Sancho Ramírez García, Bishop of Jaca Teresa Sancha Urraca |
| Father: | Bernard-Roger, Count of Bigorre |
| Mother: | Garsenda, Heiress of Bigorre |
| Birth Date: | 1015 |
| Death Date: | 1 December 1049 |
Ermesinda of Bigorre (Aragonese: Ermisenda de Bigorra), born Gerberga or Gisberga[1] (1015 – 1 December 1049), was a Queen of Aragon, a daughter of Bernard-Roger, Count of Bigorre and his wife Garsenda, Heiress of Bigorre. She was a member of the House of Foix, the sister of Bernard II, Count of Bigorre, Roger I, Count of Foix, and perhaps of Stephanie who married García Sánchez III of Navarre.[2]
Gerberga married on 22 August 1036 to King Ramiro I of Aragon.[3] After her wedding Gerberga changed her name to Ermesinda. The couple were married for thirteen years, in which time her husband elevated himself from a vassal holding scattered lands around Jaca into a de facto ruler of pocket-kingdom spanning the former counties of Aragon, Sobrarbe and Ribagorza, and is thereby credited with being the first King of Aragon. They had the following children:
All of Ermesinda's children lived to adulthood. She died on 1 December 1049 and she was buried at the Monastery of San Juan de la Peña. Her husband remarried four years later to Agnes.
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