A marquis had no children. One day, his wife slept in the garden, and a grass snake slithered into her womb. Soon afterwards, she became pregnant and gave birth to a girl with a snake wrapped about her neck; the midwives were frightened, but the snake slithered off into the garden without harming anyone.
The girl was named Biancabella. When she turned ten, the snake spoke to her in the garden, telling her that she was her sister, Samaritana, and that if Biancabella obeyed her, she would be happy but miserable if she did not. The snake then ordered her to bring two buckets, one of milk and one of rosewater. When Biancabella returned to the house, she was distressed so her mother asked her what made her so sad. Biancabella asked for the buckets, which her mother gave her, and she carried them into the garden. The snake then had Biancabella bathe in the buckets. She became even more beautiful, and when her hair was combed it shed jewels, and when her hands were washed, they shed flowers.
This attracted many suitors. Finally, her father agreed to marry her to Ferrandino, King of Naples. After the wedding, Biancabella called on Samaritana, but the snake did not come to her. Biancabella realized she must have disobeyed her and grieved for the snake, but left with her husband. Ferrandino's stepmother who wanted to marry him to one of her ugly daughters, was enraged. Some time later, Ferrandino had to go to war; while he was gone, his stepmother ordered her servants to take Biancabella away and kill her, bringing back proof of her death. They took her away, and while they did not kill her, they gouged out her eyes and cut off her hands. The stepmother gave word that her own daughters had died, and that the queen had miscarried and was ill; then, she put her own daughter into Biancabella's bed. Ferrandino, returning, was greatly distressed.
Biancabella called on Samaritana, who still did not come. An old man brought her to his home; his wife rebuked him, because she had doubtlessly been punished for some crime, but he insisted. Biancabella asked one of his three daughters to comb her hair; the old woman did not want her daughter to be a servant, but the girl obeyed and jewels came out of Biancabella's hair. The family was greatly pleased because she had delivered them from poverty. After a time, Biancabella asked the old man to bring her back to where she had been found, and there she called on Samaritana until she finally thought of killing herself. Samaritana appeared to stop her, and Biancabella appealed for forgiveness. Samaritana restored her eyes and hands, and then herself transformed into a woman.
After a time, the sisters, the old man and woman, and their daughters went to Naples, where Samaritana built them a house magically. Ferrandino saw the women, and they told him that they had been exiled and had come there to live. He brought the women of court, including his stepmother, to the castle, where Samaritana told a servant to sing Biancabella's story without including the names. Then she asked what would be a fitting punishment. The stepmother, thinking to evade notice, said she should be cast into a red-hot furnace. Samaritana told the king the truth; Ferrandino ordered the stepmother to be thrown into a furnace, married off the old man's three daughters well, and lived happily with Biancabella until he died, and his son succeeded him.The Snake
In "The Snake", the girl, a peasant, is the youngest of the three and the snake protects her after she is the first not to panic at the sight of it. The snake's gifts were that she would weep pearls and silver, laugh pomegranate seeds, and wash her hands to get fish—the last being the gift that saved her family from hunger. Her envious sister had her locked in the attic, but she saw the prince there, and laughed, and a pomegranate tree sprang up from one seed. When only she could pick the pomegranates, the prince decided to marry her.
Her sisters attempted the same substitution as the stepmother in Straparola's tale, but at the time of the wedding, the oldest sister married him. The snake had to trick the sisters into giving back the eyes and hands, by demanding them as the price for figs and peaches when the pregnant oldest sister craved them. The oldest sister gave birth to a scorpion, the king nevertheless had a ball, and the youngest sister went and revealed all.