Dolf, Vico Equenza is a beautiful little village. My entire family is from Sorrento, Sant Agata and Torca.The name is SO common! The only other more common name in Italy is Russo.Esposito's are predominantly from Naples region, specifically a Pompeii orphange."Married to Christ" = Esposito given to many of the orphans in the 1800-1900's.
I strongly recommend visiting the region if you haven;t done so already.I have only one sister and an aunt here in the US.The remainder are still thriving in Sorrento.