As a nation state, Italy has emerged only in 1871. Until then the country was politically divided into a large number of independant cities, provinces and islands. The currently available evidences point out to a dominant Etruscan, Greek and Roman cultural influence on today's Italians.
Modestino is both a name and a surname. Oddly enough one of my neighbors was born in Avellino,Italy and his first name was Modestino while various directories show Modestino as a surname as well. =Peter=
My 4-great grandfather's name was Giacinto Lorello from Parco, Sicily (now known as Altofonte). I have various documents that was part of allegati that appears to be in Latin from 1826.
It states Giacinto's name as Hiacinto and Hyacinthy.