What is the {empire} for {official language} of {Latin}
Who is the empire heading the official spoken language of Latin?
 select distinct ?sbj where { ?sbj wdt:P37 wd:Q397 . ?sbj wdt:P31 wd:Q48349 } 
select distinct ?subj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> ?subj . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P37> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q397> . ?subj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q48349> } 
Which country is in charge of Latin, as an official spoken language?