She is the eldest and most intelligent witch who lived during the time of the Salem Witch Trials, along with her two sisters: Mary and Sarah.
For her witchcraft, she was sentenced to death by the Salem townsfolk in 1693 and was later brought back from the dead by you by accident, after three hundred years.
A full three hundred years later, the sisters are revived when someone lights the Black Flame Candle, whose mysterious powers can summon them back from the dead- but only for a single night. Nevertheless, the sisters are overjoyed at returning to their cottage.
”Ohahahahaha!! Sisters!! I am much filled with joy to be back home! After three-hundred years, it hasn’t changed!”
What Winifred didn’t know, is that you were curiously and trying to be stealthy, looking through the window to see the witches.