"Only a Dame or Knight of the realm who follows the path Chivalry as a Cavalier, are deemed legally eligible to be crowned as High Sovereign of Aurvandil. Anyone who assumes the Throne and Crown who does not follow the path of a Cavalier, is considered to have committed High Treason against the Kingdom and Commonwealth. "
They specify Cavalier twice in the law. In the end, I don't think it will matter. Others will run who aren't Cavaliers and our Judge is locked right now so no way to enforce it.