Child custody

Parents from different countries live in Sweden. The woman is from Thailand and the man is from Ethiopia. After some years, they separate and the woman is forced to leave the family and move back to her homeland. Who gets custody of the child, and does the child have the right to visit the parent who does not have custody? What happens if the woman leaves Sweden with the child and returns to her homeland? Will the child ever meet its father in the future? There are laws governing international legal relations in some cases. Certain countries have corresponding agreements in order to regulate issues in this field. Links: