query: # oldest given names
  SELECT ?name ?nameLabel ?minDob WITH {
    SELECT ?name (MIN(?dob) AS ?minDob) WHERE {
      ?person wdt:P31 wd:Q5;
              wdt:P569 ?dob;
              wdt:P735 ?name.
      FILTER(!ISBLANK(?dob) && !ISBLANK(?name)).
      FILTER(DATATYPE(?dob) = xsd:dateTime). #T94064?
    }
    GROUP BY ?name
    HAVING(COUNT(DISTINCT ?person) > 1)
    ORDER BY ASC(?minDob)
    LIMIT 100
  } AS %names WHERE {
    INCLUDE %names.
    SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
  }
  ORDER BY ASC(?minDob)