Latvia - Passport & Nationality - Latvian Citizenship by Descent
1) was born in Latvia;
2) was born outside Latvia but, on the day of the child's birth, both parents or the parent with whom the child lives, were permanently residing in Latvia.
(2) In the cases listed above, the parents upon their mutual agreement, can choose the citizenship of another state (other than Latvia) for the child.
(3) If, on the day of the child's birth, one parent was a citizen of Latvia and the other parent was an alien and the permanent residence of both parents was outside Latvia, then the child's citizenship shall be decided upon the mutual agreement by the parents;
(4) If, on the day of the child's birth, one parent was a Latvia citizen and the other parent was stateless or was unknown, then the child shall be a Latvia citizen regardless of his/her place of birth.
OR
Children both of whose parents were citizens of Latvia on the day of birth of such children, regardless of the place of birth of such children.