From when and until when was Charles I of England monarch of Scotland?
SELECT ?value1 ?value2 WHERE { wd:Q81506 p:P39 ?s . ?s ps:P39 wd:Q18810063 . ?s pq:P580 ?value1 . ?s pq:P582 ?value2 }
charles i of england: Q81506 king of scotland: Q18810063