Francesco Maria Emanuele Gaetani (1720–1802), marquis of Villabianca, was a Sicilian nobleman and historian.
Gaetani was born in Palermo, and held public office there.
He studied and wrote about the history of Sicily.
[1] His principal publication was Della Sicilia Nobile, published in five parts between 1754 and 1775, the last part of the appendix published posthumously in 1897.
Among his other works are: His Diari della Città di Palermo, annals from 1743 to 1802, were published posthumously, as were his 48 Opuscoli palermitani on local topics.