Title: Ermengarde, Viscountess of Narbonne
Content:  Ermengarde (Occitan: Ermengarda, Ainermada, or Ainemarda) (b. 1127 or 1129 – d. Perpignan, 14 October 1197), was a viscountess of Narbonne from 1134 to 1192. She was the daughter of Aimery II of Narbonne and his first wife, also named Ermengarde.
Title: Ermengarde, Viscountess of Narbonne
Content:  Without issue after two unhappy marriages, Ermengarde designated as heir Pedro Manrique de Lara -the second but eldest surviving son of her half-sister Ermessinde (who had died in 1177) by her husband, Count Manrique Pérez de Lara (who was killed in battle in Garcianarro on 9 July 1164). In 1192 Ermengarde abdicated the viscounty in favor of Peter and retired to Perpignan, where she died five years later.
Title: Ermengarde, Viscountess of Narbonne
Content:  Aimery II was killed at the Battle of Fraga on July 17, 1134, fighting against the Almoravids along with Alfonso I of Aragon. Aimery left only two underaged daughters as his heirs, Ermengarde and her half-sister Ermessinde (daughter of Aimery's second wife, also named Ermessinde). Aimery had at least one son, also called Aimery, attested in numerous charters, but he predeceased him (ca. 1130). Thus, the approximately five-year-old Ermengarde inherited the viscounty of Narbonne, which occupied a strategic place in the politics of Languedoc: it was desired by the counts of Toulouse, the counts of Barcelona, the Trencavel viscounts of Carcassonne, and the lords of Montpellier.  In 1142, Alfonso Jordan, count of Toulouse, 
Title: Viscounts of Narbonne
Content: Jacqueline Caille, "Ermengarde, vicomtesse de Narbonne (1127/29-1196/97). Une grande figure féminine du midi aristocratique", in La femme dans l'histoire et la société méridionales (IXe-XIXe siècles), Actes du 66e congrès de la Fédération Historique du Languedoc Méditerranéen et du Roussillon (Narbonne, October 15-16, 1994), Montpellier, 1995, pages 9-50. ; Thierry Stasser, "La maison vicomtale de Narbonne aux Xe et XIe siècles", Annales du Midi, v. 204, 1993, p. 489-507. 
Title: Ermengarde, Viscountess of Narbonne
Content:  wife Faydid of Uzes had either recently died or been repudiated, married the now-adolescent Ermengarde. 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 an alliance against Toulouse. 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. Following the dissolution of her marriage to Alfonso, Ermengarde was married to a vassal of Roger II, Bernard IV of Anduze.
Title: Ermengarde of Anjou (d. 1146)
Content:  In 1093, her father married her to Duke Alan IV of Brittany, probably to secure an alliance against Normandy, then controlled by William the Conqueror’s son, Robert Curthose. The union produced three children: the future Duke Conan III, Hawise and Geoffrey. Her husband left for Palestine in 1096 to take part in the First Crusade and she served as Regent of the Duchy from then until 1101. She spent little time in Rennes or the west of Brittany, preferring Nantes and the Saumur region. Influenced by Robert of Arbrissel, she approved the expansion of the abbey at Fontevraud, to which she withdrew from 1103 to 1105. An admirer of Saint Bernard of Clairvaux (to whose abbey she made donations), she favored the creation of Cistercian abbeys. She was also a benefactor of the monastery of Buzay, near Nantes. In 1112, Ermengard's husband, Alan, an unpopular ruler, was forced to abdicate and entered the monastery of Redon. Ermengard ruled the county jointly with her son, Conan III.
Title: Ermengarde, Viscountess of Narbonne
Content:  In 1177 she joined Gui Guerrejat (the lover of Azalais de Porcairagues), Bernard Ato V of Nîmes and Agde, and Gui's nephews William VIII of Montpellier and Gui Burgundion, in an alliance in opposition to Raymond VI of Toulouse, whose power suddenly increased when he became ruler of Melgueil as widower of Ermessende of Pelet.
Title: Ermengarde of Burgundy
Content:  Ermengarde's origins are obscure, and the identity of her relatives is unknown. Several scholars have, however, suggested that Ermengarde was related to Humbert of Savoy and the House of Savoy. In the nineteenth century, several scholars hypothesised that Ermengarde's first husband was Manasses, count of Savoy, with whom she had a son, Humbert of Savoy. Laurent Ripart, by contrast, suggests that Ermengarde may have been the sister of Humbert of Savoy, who was part of the entourage of Rudolf III of Burgundy. Alternatively, François Demotz argues that Ermengarde was a member of the Sigiboldides (or Siboldi) dynasty, who were also part of Rudolf III's entourage.
Title: Viscounts of Narbonne
Content:  The viscount of Narbonne was the secular ruler of Narbonne in the Middle Ages. Narbonne had been the capital of the Visigoth province of Septimania, until the 8th century, after which it became the Carolingian Viscounty of Narbonne. Narbonne was nominally subject to the Carolingian counts of Toulouse but was usually governed autonomously. The city was a major port on the Mediterranean Sea. In the 12th century, Ermengarde of Narbonne (reigned 1134 to 1192) presided over one of the cultural centers where the spirit of courtly love was developed. In the 15th century Narbonne passed to the County of Foix and in 1507 to the royal domain of France.
Title: Ermengarde-Gerberga of Anjou
Content:  Ermengarde-Gerberga was born c. 956, the daughter of Geoffrey I, Count of Anjou and Adele of Meaux. She married Conan I of Rennes, Count of Rennes, in 973. Her husband Conan of Rennes opposed her father and brother Fulk even though the marriage was apparently designed to form a political alliance between Anjou and Brittany. Even after Conan had been killed by Fulk at the Battle of Conquereuil in 992, and during the period 992-994 when Ermengarde was Regent for their son Geoffrey, she remained loyal to her brother Fulk III, Count of Anjou. In 992, following the interests of her brother, and functioning as Regent, she accepted Capetian over-lordship for Rennes while rejecting that of Odo I, Count of Blois. About 1000 her brother Fulk III arranged his widowed sister to marry, secondly, William II of Angoulême, one of his close allies.

Question: Who is the father of Ermengarde, Viscountess of Narbonne?
Answer: Aimery II of Narbonne.
Aimeric II.