Eudokia Komnene

Eudokia Komnene's parentage has been subject to scholarly dispute. She is not mentioned in any contemporary Byzantine source,[1] while western sources describe her ambiguously as kinswoman of Manuel I Komnenos (r. 1143–1180). As such, her precise placement within the Komnenoi remains uncertain, with recent scholars suggesting that she was daughter of Manuel's brother, the sebastokratorIsaac Komnenos, son of the Byzantine emperor John II Komnenos (r. 1118–1143),[2] or of his nephew, protostrator Alexios Komnenos, son of sebastokrator Andronikos Komnenos, likewise son of Emperor John.[3]

https://en.m.wikipedia.org/wiki/Eudokia_Komnene,_wife_of_William_VI...

-https://fmg.ac/Projects/MedLands/BYZANTIUM%2010571204.htm#EvdokiaKd...
2. EVDOKIA [Komnene] ([1160/64]-[Nov 1202/Jun 1204]). The parentage of Evdokia is not known. The Annales Pisani (probably written [1182]%29 records that "l'Imperatore Emanuel" sent his envoys to arrange the betrothal of "una sua nepote…al fratello del Re di Aragona" (Raymond Bérenger III Comte de Provence), the projected marriage aimed at thwarting the influence of the Emperor Friedrich "Barbarossa" through an alliance with Emperor Manuel I, but the betrothal was terminated by Emperor Friedrich as suzerain over the Comté de Provence, the emperor proposing "Goglielmo di Mompellieri" [Guillaume [VIII]] as a suitable alternative[380]. A less specific narrative is provided by the later (and probably more dubious) Historia de Don Jaime I which records that “nuestro abuelo el rey don Alfonso” opened negotiations “con el emperador de Constantinopla” to marry “la hija de este soberano”, that the king had married “doña Sancha hija del emperador de Castilla”, that not knowing about this marriage “el de Constantinopla” sent “su hija al rey de Aragon”, that her entourage learnt of the king’s marriage on arriving at Montpellier, where “Guillermo de Montpeller” arranged to marry her himself[381]. The Historia Albigensium of Guillaume de Puylaurens refers to the mother of Marie de Montpellier, wife of Pedro II King of Aragon, as “Græcam...neptem Emmanuelis imperatoris Constantinopolitani”[382]. The absence of information concerning Evdokia in Byzantine sources suggests that she was probably not the emperor’s daughter (especially as she would have been “porfyrogenneta”) but a more distant relation, assuming that she was a member of the imperial family. According to Sturdza, she was the daughter of Alexios Komnenos, son of sébastocrator Andronikos Komnenos (older brother of Emperor Manuel I) but he provides no indication of the primary source (if any) on which this speculation is based[383]. Barzos suggests that she was the daughter of Isaakios Komnenos, son of Emperor Ioannes II, writing that "if Eudokia [K. 143, according to his numbering] were not the daughter of Isaakios [K. 78], then she would be a daughter of Ioannes [K. 128] [son of Andronikos Komnenos sébastocrator]"[384]. However, there appear to be too many unknown factors in the genealogy of the Komnenos family for arguments by elimination to be reliable. Pope Innocent III wrote to “Willelmo domino Montispessulani”, dated [after 7 Sep] 1202, about his marital difficulties[385]. She became a Benedictine nun at Aniane.

Betrothed ([1176/78], broken 1178) to RAYMOND BERENGER III Comte de Provence, Infante de Aragón, son of RAMÓN BERENGUER IV Count of Barcelona & his wife Petronilla Queen of Aragon ([1158]-murdered Montpellier 5 Apr 1181).

m ([1178/79], divorced Apr 1187) as his first wife, GUILLAUME [VIII] Seigneur de Montpellier, son of GUILLAUME [VII] Seigneur de Montpellier & his wife Mathilde de Bourgogne [Capet] (-[Nov/Dec] 1202).

From Wikipedia

Eudokia Komnene, Lady of Montpellier Eudokia Komnene (or Eudocia Comnena) (Greek: Εὐδοκία Κομνηνή, Eudokia Komnēnē) (c. 1160 – c. 1203) was a relative of Byzantine Emperor Manuel I Komnenos, and wife of William VIII of Montpellier.

Lady of Montpellier

Noble family Komnenos

Spouse(s) William VIII of Montpellier Issue Maria of Montpellier

Eudokia Komnene's parentage has been subject to scholarly dispute. She is not mentioned in any contemporary Byzantine source,[1] while western sources describe her ambiguously as kinswoman of Manuel I Komnenos (r. 1143–1180). As such, her precise placement within the Komnenoi remains uncertain, with recent scholars suggesting that she was daughter of Manuel's brother, the sebastokrator Isaac Komnenos, son of the Byzantine emperor John II Komnenos (r. 1118–1143),[2] or of his nephew, protostrator Alexios Komnenos, son of sebastokrator Andronikos Komnenos, likewise son of Emperor John.[3]

Eudokia Komnene was sent to Provence by Manuel in 1174 to be betrothed to a son of the royal family of Aragon-Barcelona. According to untrustworthy troubadour narrative, her projected husband was to be their eldest son, King Alfonso II of Aragon (who had just married Sancha of Castile). The Annals of the city of Pisa report that the intended bridegroom was to be Alfonso's younger brother, Ramon Berenguer III, Count of Provence. The projected marriage aimed at thwarting the influence of Emperor Frederick I through an Aragonese and Provençal alliance with Emperor Manuel I of Constantinople. However the betrothal was terminated by Emperor Frederick I as the liege lord of the County of Provence, the emperor proposing William of Montpellier as a suitable alternative to become her husband. The betrothal with Raymond Berenger was at end in 1179 at latest. Count Raymond died in 1181, incidentally in Montpellier.

As the troubadour Peire Vidal put it, the young king had preferred a poor Castilian maid to the emperor Manuel's golden camel.

After much indecision Eudokia married William VIII of Montpellier in 1180, having made it a condition (to which all male citizens of Montpellier were required to swear) that their firstborn child, boy or girl, would succeed him in the lordship of Montpellier.

Eudokia was sometimes described by contemporaries, including the troubadours Folquet de Marselha and Guiraut de Bornelh, as an empress (Occitan: emperairitz) and was commonly said to be a daughter of the Emperor Manuel, which has led to some confusion among modern authors about her family links. Other sources, such as Guillaume de Puylaurens, identify her simply as Manuel's kinswoman.

William VIII and Eudokia had one daughter, Maria of Montpellier, born in 1182. In April 1187 her husband divorced her (because she encouraged the advances of Folquet de Marselha, according to the Biographies des Troubadours; because William VIII wanted a male heir, according to documents likely to be more reliable). Eudokia was thereafter held at the monastery of Aniane and took the veil as a Benedictine nun. She died about 1203, shortly before her daughter's marriage to King Peter II of Aragon.