if someone's name is christiane portugal dos santos, she is from bolivia, she claimes shes portuguese, what is her last name from mother and whoch one of father

In the name "Christiane Portugal dos Santos," it is common in many Spanish and Portuguese-speaking cultures to have multiple family names. Typically, the first surname listed is the father's surname, and the second surname is the mother's surname. Given the name you provided: - **"Portugal"** is likely the father's surname. - **"dos Santos"** is likely the mother's surname. So, her father's last name would be **Portugal**, and her mother's last name would be **dos Santos**.