Question: What is the place of death of the royalties one of whose parents was Adam Ludwik Czartoryski?
SPARQL query:
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX res: <http://dbpedia.org/resource/>
PREFIX prop: <http://dbpedia.org/property/>
PREFIX onto: <http://dbpedia.org/ontology/>
SELECT DISTINCT ?uri WHERE { ?x onto:parent <http://dbpedia.org/resource/Adam_Ludwik_Czartoryski> . ?x prop:deathPlace ?uri . ?x rdf:type onto:Royalty}