Demiria was destroyed in the Great Cataclysm of 2011. Many, however, managed to escape the carnage, and formed a new nation. They immediately elected a descendant of the great Prince Riva, who had ruled Demiria for many many years, as their new ruler. The new Prince, out of honour of his predecessor took the name Riva Thunderwolf, or Riva II.
The new nation (which is yet to be named) experienced an immediate explosion of infrastructure, and managed to sneak most of the technology out of the old nation prior to its collapse. After long and fervent prayer, the citizens of the new nation awoke one morning to find that all the structures, wonders, and improvements from the old Demiria had miraculously appeared, intact, in their new nation. The Pope - who had been making an Apostolic Visit at the time - immediately declared this a miracle, and attributed it to the intercession of the Blessed Mother of God. Shortly before the Great Cataclysm, the former Prince Riva I was teaching about her to the other members of his alliance.
In thanksgiving for the miracle, Prince Riva II proclaimed that the nation would no longer participate in war.
Government systems are still being established; in the meantime the new nation is ruled by the Prince directly and his immediate lieutenants. Prince Riva II has declared that the nation will be a part of the Christian Coalition of Countries.