Who is a successor of Kingship whose parent was Julius Caesar?
SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/ontology/parent> <http://dbpedia.org/resource/Julius_Caesar> . ?x <http://dbpedia.org/ontology/successor> ?uri  . ?x <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Royalty>}
Julius_Caesar