what is the {start time} for {Henry VII} has {position held} as {monarch of England} ?
How long was Henry VII king of England?
SELECT ?value WHERE { wd:Q675493 p:P39 ?s . ?s ps:P39 wd:Q18810062 . ?s pq:P580 ?value}
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q675493> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P39> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q18810062> .
?statement <http://www.wikidata.org/entity/P580> ?value. 
} 

What was the tenure of Henry VII as king of England?