About the Castelletti surname
The surname Castelletti has a primarily toponymic formation. The surname form is characteristic of Italian naming traditions; the suffix may have patronymic, diminutive, or regional value. In this type of surname, the name first located a person in relation to a place before becoming hereditary. Families bearing the same surname may nevertheless come from different places when more than one locality produced a similar name.
Pronunciation:
Kas-tè-lè-ti/kastɛlɛti/