Any 3 surnames are usually a giveaway in Tuscany of particular historical lineage. Nobody else uses/has them. Here is the family of the girl Guido escorted to the debutante ball, Costanza della Gherardesca (1987), daughter of Gaddo (scroll far right last row). Usually all of these families have streets or palazzi named after them in town.
it.m.wikipedia.org
His family were a bunch of Counts back in the day, as per this FAI article (talking about their watermill) If you need you can copy and paste in google translate.
MULINO DEI CONTI GALLI TASSI E PIEVE DI SAN VINCENZO A TORRI (LUOGO DEL CUORE) (SCANDICCI, FIRENZE) è il tuo luogo del cuore? Votalo e salvalo con il censimento del FAI. Ricordati di far votare i tuoi amici!
www.fondoambiente.it
The main reason I wanted to post was to note what
@Alessandro mentioned last night helped make much more sense of Kylie's story. Knowing about being dumped and broke, what she did next makes sense. She was in Australia for quite a bit, since Christmas 2018, and for many months, with trips to LA (

) and her middle east road trip in between. She moved to Florence in July 2019, per her IG. That's the apt she rented from Cosimo, friend of Guido's as we now know. Lol.