A rip takes the first of my vocal surname
You'll see me as a rival because of where I came
One of two things to a saint born in Rome no surprise
Take half of this riddle's series for an opposite prize
Name the name.
Hint 1:
The second line refers to the name itself, not of any famous person with the name. Also, don't stress over the fourth line, it's an in-series reference to these riddles
Hint 2:
This name is of Italian origin
Hint 3:
Depending on how you say this name, it might sound like 2 names combined. Also the name is feminine by the way
That's about all the hints I can give without being too easy with them.
Hint 4:
I thought of another hint to push you in the right direction. The second line refers to how the name itself means "rival"