La Signora Dei Teschi

Personal project :"La Signora Dei Teschi ".
I was a bit sad not to find anything by this name in the real life ( or I completely missed it in my research.. )
I always loved myths / legends / stories since I was a kid , she would be a nice character in one of those I think .
Do you have any great dark myths and legends stories to share ? I am always happy to discover and read them !