Tons of women from my generation, in my country, have the name Maria as their 'first' first name. As in Maria Eugenia, Maria Esther, Maria Teresa, Maria de Lourdes, etc. But they are always called by their 'second' first name: Eugenia, Teresa, etc.
That is my case.
The first time I visited the US, I told people the name I was usually called, and the pronunciation was so strange and different I didn't like it. Thus, I decided to choose Maria as my name.
Since the begining of the Internet I ve been Maria everywhere, and I like it very much.
3a/b, CG mostly.