Question: Which countries were ruled by the person who said "Oh, that peace may come"?
Answer(s):
answer: Monmouthshire
answer: United Kingdom
answer: British Raj
answer: The Canadas

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ?c)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
?c ns:people.person.quotations ns:m.0g_mjcx . 
?c ns:government.political_appointer.appointees ?y .
?y ns:government.government_position_held.jurisdiction_of_office ?x .
}