Regilli

Regilli is a surname of Italian origin. It is primarily found in the Lazio region of Italy, particularly in the provinces of Rome and Frosinone. The name's etymology is not definitively established, but some theories suggest it may derive from a Latin given name or a topographical feature. Surnames in Italy often evolved from patronymics, given names, occupations, or descriptive nicknames.

Like many Italian surnames, Regilli likely has a long history tied to specific localities. Families bearing this surname would have historically established themselves in certain towns and villages, with their descendants continuing to use the name through generations. Historical records, such as church registers, census data, and notarial archives, can provide more detailed information about the origins and geographical distribution of the Regilli surname over time. The prevalence of the name in Lazio suggests a strong regional connection.