It is also said that Jacquetta, mother of King Edward IV's queen, Elizabeth Woodville, is descended from Melusine from whom she inherited her 'magic' abilities. She is supposed to have been a practicing witch and had been seen casting spells. She was accused of witchcraft in 1469 but cleared the following year.
This account of Melusine story written was by Linda Foubister.
One day, Raymond’s brother visited him and made Raymond very suspicious about the Saturday activities of his wife. So the next Saturday, Raymond sought his wife, finding her in her bath where he spied on her through a crack in the door. He was horrified to see that she had the body and tail of a serpent from her waist down. He said nothing until the day that their son, Geoffrey-with-the-great tooth, attacked a monastery and killed one hundred monks, including one of his brothers. Raymond accused Melusine of contaminating his line with her serpent nature, thus revealing that he had broken his promise to her.
As a result, Melusine turned into a fifteen-foot serpent, circled the castle three times, wailing piteously, and then flew away. She would return at night to visit her children, then vanish. Raymond was never happy again. Melusine appeared at the castle, wailing, whenever a count of Lusignan was about to die or a new one to be born."