Original: Rosignano Marittimo is a comune ( municipality ) in the Province of Livorno in the Italian region Tuscany , located about 80 km southwest of Florence and about 20 km southeast of Livorno .
Simplified: Rosignano Marittimo borders the following comuni : Castellina Marittima , Cecina , Collesalvetti , Livorno , Orciano Pisano , Santa Luce .