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Cognomen Montalvao (Montalvao ) , across the world, is quite a common family name. The cognomen Montalvao is characteristic of Brazil, where it is quite a rare surname, Portugal, and Belgium, where it is a rare surname.
Mr, Sany, Sara, Susy, Seir, Alex, Alef, Alif, Alan, Alba, Almi, Alda, Anna, Anne, Anny, Arao, Aron, Adan, Adao, Adna, Agno, Ageu, Mike, Majo, Mayk, Maya, Ms, Max, Mã, Ana, Ari, Ary, Ray, Rui, Ruy, Dea, Agda, Eli, Edy, Eni, Eva, Isa, Ila, Iva, Ivo, Yan, Mary, Mara, Ely, and Auro