I am certainly not an expert on Brazilian naming patterns, but it's important to keep in mind that Brazil's national language is Portuguese, not Spanish.
In many Spanish cultures individuals have two surnames - the father's paternal family name and then the mother's paternal family name. The father's family name is the one most commonly used to address people. For example, Pedro Carlos Bueno Lopez would be abbreviated to Pedro Bueno. But again, I'm not sure how this works in Brazil or Portuguese in general.
Also, I interpret Andonia as a middle name, not a surname, but I could be wrong.