What is {child} of {Klemens von Metternich} that is {mother} is {Catherine Bagration} ?
When was Klemens von Metternich born to Cathrine Bagration?
When was Klemens von Metternich of Cathrine Bagration of mother of child?
SELECT ?t WHERE { ?f property:child ?t . resource:Klemens_von_Metternich property:child ?f . ?f property:mother resource:Catherine_Bagration }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q45662> .
?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> ?obj .
?statement <http://www.wikidata.org/entity/P25> <http://wikidata.dbpedia.org/resource/Q276487>
} 

SELECT ?obj WHERE { wd:Q45662 p:P40 ?s . ?s ps:P40 ?obj . ?s pq:P25 wd:Q276487 }