Alchemical Symbolism in the VMS

[cvetkakocj@rogers.com]

While Duke Jean de Berry (VMs cosmic similarities with BNF Fr. 565) has several connections with the Melusine of Lusignan, he and his siblings were the children of Bonne of Luxembourg and laid claim to "Melusine" as an ancestral figure.

Other potentially relevant connections to the Melusine of Luxembourg might include Sigismund of Luxembourg, the Holy Roman Emperor and Elizabeth of Görlitz (d.1451), Duchess of Luxembourg, for a time.

Hi, there, I think this is a good clue to the meaning of Melusine. By 15th century, the Cathari and Patareni were only a distant memory in Europe, however in Bosnia, the Bogomils who gave raise to Cathari in Freance and Patareni in Northern Italy were still active and had their own state religion, separated from Rome. They called themselves Krstjani (the baptized one).
As the name suggests, Bogomils were meek, pious people. Their women had high position in society and even in religion. They ran schools and hospitals. They were iconoclasts and focused mainly on the New Testament, claiming to represent original apostolic christianity. They interpreted the Bible symbolically, so they did not believe in heave, hell, purgarotry (other than the state of mind while a person is alive), nor in actual, but rather in symbolic transubstantiation.  
I believe your assumption that 'melusine' may be an ancestral figure is correct, and it is most likely a reference to a Slovenian word