query: #defaultView:Timeline
  SELECT DISTINCT ?family ?familyLabel ?eldest ?eldestLabel ?image (?dob AS ?date) WHERE
  {
    ?family wdt:P31 wd:Q13417114 .
    ?eldest wdt:P53 ?family .
    ?eldest wdt:P31 wd:Q5 .
    ?eldest wdt:P569 ?dob . 
    
    FILTER(!isBLANK(?dob)).
    
    OPTIONAL {
      ?older wdt:P53 ?family .
      ?older wdt:P31 wd:Q5 .
      ?older wdt:P569 ?odob . 
      FILTER (?odob < ?dob)
    }
    
    FILTER (!bound (?older))
    
    OPTIONAL { ?eldest wdt:P18 ?image . }
    
    SERVICE wikibase:label { bd:serviceParam wikibase:language "en" }
  } ORDER BY ?yob