User:PAC2/Comparateur prenoms

SELECT ?prenomLabel (COUNT (?item) as ?count) WHERE {
  VALUES ?prenom {
    wd:Q264002
    wd:Q18180151
  }
  ?item wdt:P735 ?prenom.
  SERVICE wikibase:label { bd:serviceParam wikibase:language "fr". }
}
GROUP BY ?prenomLabel

Try it!