What was M1 's American star 's child 's country of nationality
SELECT DISTINCT ?x0 WHERE {
?x0 ^ns:people.person.nationality ?x1 .
?x1 ns:people.person.parents|ns:fictional_universe.fictional_character.parents|ns:organization.organization.parent/ns:organization.organization_relationship.parent ?x2 .
?x2 ns:film.actor.film/ns:film.performance.film M1 .
?x2 ns:people.person.nationality ns:m.09c7w0
}