What is {date of birth} of {Chlothar II} that is {instance of} is {statement with Gregorian date earlier than 1584} ?
On what date, prior to 1584, was the birth of Chlohar II?
what is the  date of birth of Chlohar II in the statement with Gregorian date earlier than 1584} ?
SELECT ?l WHERE { ?o property:date_of_birth ?l . ?o rdf:type ontology:statement_with_Gregorian_date_earlier_than_1584 . resource:Chlothar_II property:date_of_birth ?o }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q209118> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P569> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
?statement <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q26961029>
} 

SELECT ?obj WHERE { wd:Q209118 p:P569 ?s . ?s ps:P569 ?obj . ?s pq:P31 wd:Q26961029 }