The authors agree that the surname is of Spanish origin and derives from the homonymous place name, the city of Toledo, in the historical region of New Castile. E. De Felice specifies that it is a Spanish surname and noble predicate which, as such, came to be used as a surname in Italy. E. Rossoni agrees on the Spanish origin and the toponymic character, without adding further details.

Both authors place its presence in southern Italy, De Felice being the only one to note Naples as a zone of appearance, where the surname is recorded sporadically.