I think that a lot of times it's okay to alter the pronunciation a little bit when passing names from culture to culture. How many Americans say
Isabel EE-sa-bel (complete with Spanish accent)? Not too many go for ah-de-lie-ee-deh with
Adelaide. Hardly anyone says -oos in names that end with -us. We adapt pronunciations to our dialects and I think that's okay.
Maria was
Mariah for ages.