What is {date of death} and {mother} of {{Pedro I} has {child} as {Maria II of Portugal}}
When did Pedro I's toddler Maria II of Portugal die and who used to be her mother?
When did Pedro I's child Maria II of Portugal die and who was her mother?
SELECT ?p ?j WHERE { ?m property:child resource:Maria_II_of_Portugal . ?m property:date_of_death ?p . resource:Pedro_I_of_Brazil property:child ?m . ?m property:mother ?j }
select distinct ?value1 ?value2 where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q939> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P40> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q221145>. ?statement <http://www.wikidata.org/entity/P580> ?value1 . ?statement <http://www.wikidata.org/entity/P2842> ?value2 } 
SELECT ?value1 ?value2 WHERE { wd:Q939 p:P40 ?s . ?s ps:P40 wd:Q221145 . ?s pq:P570 ?value1 . ?s pq:P25 ?value2 }