query: SELECT DISTINCT ?item (COUNT(DISTINCT ?sitelink) AS ?linkcount) WHERE {   
   ?item wdt:P21 wd:Q6581072 .
   ?item wdt:P569 ?dob.
   ?sitelink schema:about ?item. 
    ?item wdt:P31 wd:Q5.
  OPTIONAL { ?item wdt:P570 ?dod. }
  FILTER (?dob <= "1600-01-01T00:00:00Z"^^xsd:dateTime  ) 
  FILTER (?dob >= "1500-01-01T00:00:00Z"^^xsd:dateTime  ) 
  FILTER (!bound(?dod ))
  } GROUP BY ?item HAVING (?linkcount >= 2)