Ermengarde, Viscountess of Narbonne

In 1142, Alfonso Jordan, Count of Toulouse, whose wife Faydid of Uzes had either recently died or been repudiated, attempted to married the now-adolescent Ermengarde.

[1] In reaction to this prospect, which overturned the balance of power in the region by adding Narbonne to the direct control of Toulouse, a coalition of Occitan lords led by Roger II of Béziers, viscount of Carcassonne, Béziers, Albi and Razès, formed to oppose Toulouse,[2] and arranged the marriage of Ermengarde with a vassal of Roger II, Bernard IV of Anduze.

[3] Alfonso was defeated by the coalition and taken prisoner, and was forced to make peace with Narbonne and restore Ermengarde and her new husband to the viscounty before being released.

Around 1190, a French cleric named André le Chapelain wrote a "Treatise on Courtly Love" (Latin De Arte honeste amandi).

In addition it is believed that she welcomed to her court Rognvald II of Orkney, a Viking prince that became a saint and poet, who composed skaldic poetry for her.

A denier minted by Alphonse at Narbonne during the minority of Ermengarde (1134–1143) bearing the obverse inscription DUX ANFOS and on the reverse CIVI NARBON