At least in the version from the album "Live", the chorus is sometimes sung with "regina" and sometimes with "latina". And both make sense:
While Regina is a proper name, that's not what it means here. Next to the Latin words "ave maria", it should probably be interpreted as the female form of the Latin word "rex", which means king. In other words, Maria is considered a queen.
Latina also makes sense, as I'd consider Maria a common name in South America.
At least in the version from the album "Live", the chorus is sometimes sung with "regina" and sometimes with "latina". And both make sense: While Regina is a proper name, that's not what it means here. Next to the Latin words "ave maria", it should probably be interpreted as the female form of the Latin word "rex", which means king. In other words, Maria is considered a queen. Latina also makes sense, as I'd consider Maria a common name in South America.