What is {date of birth} and {date of death} of {{Louis IX of France} has {child} as {Blanche de France}}
When was Louis IX and his son Blanche De france born?
When was Louis IX of France born, and when did was his son Blanche de France born?
SELECT ?p ?x WHERE { ?e property:date_of_birth ?p . ?e property:child resource:Blanche_de_France . resource:Louis_IX_of_France property:child ?e . ?e property:date_of_death ?x }
select distinct ?value1 ?value2 where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q346> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P40> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q14751950>. ?statement <http://www.wikidata.org/entity/P580> ?value1 . ?statement <http://www.wikidata.org/entity/P2842> ?value2 } 
SELECT ?value1 ?value2 WHERE { wd:Q346 p:P40 ?s . ?s ps:P40 wd:Q14751950 . ?s pq:P569 ?value1 . ?s pq:P570 ?value2 }