Faustina Orsi was a young woman from Benevento (Italy)  who was accused of bewitching some children,  killing them with her magic potions. After being found and arrested she was taken  before the judges of the Holy Inquisition.
Despite her innocence, she confessed her devotion to Satan after she had been put under terrible tortures.  After the trial she was executed by hanging the 10th of  June 1638.

This is the story, but now I want to tell you the legend:

It is said that the witch had fallen asleep that day near a river. When she woke up she went to
wash her face, and then, which is very stange, she started to play with her feet in the water as
if she had been attracted by some kind of desire.
After she washed herself she headed for a  path in the woods. While she was walking she met two girls preparing a strange mixture inside a big cauldron:

The girl, a little bit for curiosity, a little bit for naivety, agreed to join them so the trio
started dancing and singing around the cauldron:

A peasant passing by, heard the women's voices, hid himself in a bush and began to follow the scene:

In the village for some time there's been some disappearances of children and people thought it
was a work of the Devil.

When they finished the dance, three girls put the mixture into a cup and headed for the wood
until they reached a tombstone (representing a devil's skull) under "The walnut of Benevento".
On their knees in front of the tombstone, three women offered the potion to Satan as the sign of
their devotion and gratitude:

In the meantime the peasant arrived before the judge of the Holy Inquisition and told him what he had seen

-Sir, I have seen three girls in the wood doing a magic ritual.
-Explain me better.
-They were dancing around a big caldron after they had covered the faces with a strange red
 mixture.
-They must be witches!
-Sir, maybe those women have to do with the death of the children.
-I think so. We have to capture them!  Guards, go with the peasant and  bring the women before me.
-Yes, Sir!
-Go now!

In the meantime, after the magic ritual had been finished, three exhausted girls fell asleep near
the tombstone.

At some point of time they were reached by the men who wanted to surprise them:

The pursuit was shortly over , the two girls managed to escape and disappeared in the woods .

The girl was chained and dragged along the path by the two men. The same day she was taken before the judge to answer some questions:

-What's your name, girl?
-My name's Faustina Orsi.
-What were you doing in the wood?
-I was picking mushrooms with my friends.
-You are lying, the bumpkin saw you doing a gruesome dance around the cauldron.
-No....,no! I'm not a witch!
-What kind of mixture were you preparing?
-None, Sir, we were just washing our clothes.
-You are continueing to lie, girl! Confess that you are a witch or it will be worse for you.
-Believe me ,Sir, we weren't doing anything bad.
-I warn you that I'm losing my patience! Confess if you don't want to suffer terribly.
-I don't have anything to confess.
-Tell me, did you murder those children so you could give a present to Satan?
-What kind of children are you talking about, Sir?
-The children that disappeared mysteriously some days ago. You don't know anything about it? Strange, it has been talked about in whole Benevento.
-I don't have anything to do with the disappearance of the children.
-You dare not confess it? Ok, then I have a surprise for you. Guards!
-Sir!
-Take this bitch in the torture room. Put her on the trestle.
-It will be done.
-No....,no! I beg you to have mercy!
-Walk, bitch, now we'll have some fun.

In the torture room the girl was bent on the trestle and brutally flogged:

-Faustina Orsi, you've confessed to be a witch and to have sacrified 13 children to the devil.
 So I sentence you to hanging until your evil soul is not divided from your body and sunk into
 the internals of the hell. I order that your body is burnt until it remains nothing from you.

The next morning, according to the custom, the girl was taken under the tree to be hanged:

After she was made to climb a tree stump, the hangman put her a noose around her neck:
 

The chronicles from that period tell that the woman,  immediately after being hanged, started
kicking her feet, soon afterwards her face turned to purple red (an evident sign of the strangulation) and a few minutes later she died.

Even now, a popular belief says, that in the woods, every time a strong wind blows, the song of
the witch can be heard.