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


