What is {family name} of {Louise Élisabeth Vigée Le Brun} that is {start time} is {1775-8-7} ?
What is the family name of Louise Élisabeth Vigée Le Brun who was born at 1775-8-7?
SELECT ?obj WHERE { wd:Q213163 p:P734 ?s . ?s ps:P734 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1775')) }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q213163> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P734> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
?statement <http://www.wikidata.org/entity/P580> <1775-8-7>
} 

Lousie Elisabeth Vigee Le Brun family name ?