The word “Trebbio” derives from the Latin Trivium: crossing of three roads or of this world with the other. In the trivials, the classics scattered the goddess Ecate, lunar, magical, in the event. At the ancient cross in Trebbio – between via delle Belle Donne, via del Moro and precisely via del Trebbio – the Florentines remember different stories of ghosts.
According to a medieval tradition, the conspirators would have chosen this place near Piazza Santa Maria Novella for Gualtieri di Brienne. The French nobleman ruled Florence only a few months before the revolt. Nonetheless, the moon would still risk the ghosts waiting for the victim, one of them armed with a dagger.
It is then said that on the nights of the full moon, the shadow of the cross silent in the figure of an hanged, projected on the building in front. Memory of a usurer, killed by a debtor. On the night of the murder, the shape of the cross would have refused to cover the escape of the murderer, paralyzing it in the lunar light and before the image of his crime.
