There is no such word as mazza in reference to the Jewish religion. You might be thinking of one of the following words:
No. She's Italian.
To be Jewish can mean you either practice the Jewish religion, or are from a Jewish decent. It is both a race and a religion. Someone that is culturally Jewish may not practice the religion, but has a Jewish heritage. Likewise, people that do practice the Jewish religion do not have to be culturally Jewish, or have Jewish ancestors.
Valeria Mazza's birth name is Valeria Raquel Mazza.
Raúl Mazza died in 1948.
There aren't areas of the Jewish religion.
Valeria Mazza is 5'10".
Rachel Joy Mazza's birth name is Rachel Joy Mazza.
Marco Mazza was born in 1977.
Giampaolo Mazza was born in 1956.
Mazza Gallerie was created in 1975.
Kasto Mazza was created in 2005.
Paolo Mazza was born in 1901.