What are the birth and death dates of Isabella 1 of Castile and John, Prince of Asturias' child?
SELECT ?value1 ?value2 WHERE { wd:Q45859 p:P40 ?s . ?s ps:P40 wd:Q381871 . ?s pq:P570 ?value1 . ?s pq:P569 ?value2 }
isabella i of castile: Q45859 john, prince of asturias: Q381871