Caterina Sforza was born in 1463 in Forlì and died there in 1509.

The story:

Caterina was depicted as a cruel and warlike woman.

Some examples:
In Castrocaro fortress there's a place where she used to hurl down enemies.

In Piancaldoli (Fi) she went out in the night, walking with blades in her hands, running around the tower and firing rockets.

In Riolo Terme, during her parties, hosts used to disappear misteriously.
In Imola, in the basement of Palazzo Sforza, there were bladed wells where she threw enemies and her unlucky lovers.

Once Caterina raised the Devil in Palazzo Sersanti. He appeared and, as the Countess had ordered him, he ended up the building before the daylight.