Hello and welcome to the forum
On a family tree (incomplete) on Ancestry.com, it appears that your grandmother's maiden name was DOLCE, and she married an IANNITELLI.
She was born in Polizzi Generosa, Palermo, Sicily in 1906.
Her parents are listed as: Domenico Dolce and Lucia Messineo
The patron saint of Polizzi Generosa is St. Gandolfo
Here is a link to the WIKI website about the town.
There is a
coat of arms for the town at this site on the right side of the page.
http://en.wikipedia.org/wiki/Polizzi_Generosa
Closest surname I could find to IANNITELLI is IANITELLO...
Meaning and origins from the Surname Database:
http://www.surnamedb.com/Surname/Ianittello
T.