User blog comment:B214/Volume 23 discussion blog/@comment-81.135.248.15-20170324113831/@comment-10330822-20170324144909

They have a son. So odds are its named after a knight, like Gawain or Lacelot. What I would find amusing is if they named him Meliodas, Meliodas is, in Arthurian legend, the father of Tristan and a Knight of the Round Table. In Nanatsu no Taizai, Meliodas is also the name of a knight who is also a demon, meaning it would be funny if Issei's son with Le Fey, who is half-demon, was also named Meliodas.