- Married: 1051
- Died: After 1062
Compiler's 28 x great-grandmother
The Chronicle of Saint-Maxence names "Ermenseldim" as the wife of "Guillelmus Pictavorum dux et comes". The Chronicon Vindocinense records that "comes…Willelmus Pictavorum" married in 1051 but does not name his wife. "Ermensendis uxoris eius" subscribed the charter of "Willelmus Aquitanorum dux, comes autem Pictavorum" dated . "W dux Aquitanorum…germano illius Gauzfrido" donated property to Saint-Maixent by charter dated 20 Dec  subscribed by "W ducis sueque coniugis Hermensendis, Agnetis comitisse…". "[Name omitted]…comitis" donated property to Saint-Maixent "pro anime sue salute ac matris sue Agnetis ac venerabilis Ermensedis uxoris suæ" by undated charter subscribed by "Goffridi comitis". Settipani suggests that Ermesinde may have been the daughter of Bernard II Comte de Bigorre & his first wife Clémence, based solely on onomastics.
She became a nun at Rome with her sister-in-law Empress Agnes. 1
Ermesinde married Duc Guillaume VII "l'Aigret" D' AQUITAINE, Comte de Poitou, son of Duc Guillaume V "le Grand" D' AQUITAINE, Comte de Poitou, and Agnès DE MÂCON, in 1051. (Guillaume VII "l'Aigret" D' AQUITAINE was born in 1023 and died in 1058 in Poitiers, Vienne, France.)
1 Foundation for Medieval Genealogy, Medlands: Pierre de Poitou.