What is the {painting} for {depicted by} of {Charles I of England}
Who made this portray of Charles I of England?
Who created this painting of Charles I of England?
SELECT DISTINCT ?a WHERE { resource:Charles_I_of_England property:depicted_by ?a . ?a rdf:type ontology:painting }
select distinct ?obj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q81506> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P1299> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj . ?obj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q3305213> } 
 select distinct ?obj where { wd:Q81506 wdt:P1299 ?obj . ?obj wdt:P31 wd:Q3305213 } 
Portrait of Charles I, King of the Great Britain (1600-1649)