request error

[alfred hitchcock]

this is my mysql query:
$requete1= " SELECT DISTINCT mariages.* FROM mariages, ";
$requete1.= " articles_a_offrir AS A1 INNER JOIN articles_a_offrir AS A2 ";
$requete1.= " ON (A1.id_mariage=A2.id_mariage) WHERE ";
$requete1.= " ((mariages.id_mariage=A1.id_mariage) ";
$requete1.= " AND (mariages.pren_epouse='$prenom_epouse') AND ";
$requete1.= "(mariages.nom_epouse='$nom_epouse')) ";
$requete1.= " OR ((mariages.nom_mari='$nom_mari') ";
$requete1.= " AND (mariages.pren_mari='$prenom_mari')) ";
$requete1.= " OR ((DAYOFMONTH(mariages.date_du_mariage)='$jour') ";
$requete1.= " AND (MONTH(mariages.date_du_mariage)='$mois') ";
$requete1.= " AND (YEAR(mariages.date_du_mariage)='$annee')); ";

but i would like it to display only one wedding even if the family name of somebody exists for two differnet people with a different first name