Barbro Andrean Ield Ryle Vaiself

The first prince. He has a robust physique and has mastered martial arts sufficiently for a royal, but he often acts with an air of authority and has a quick temper. Despite being the first prince, he has connections with the Eight Fingers to gain benefits and belongs to the noble faction that opposes his father, King Ramposa III, causing political turmoil with his problematic behavior. His competence as a king ranks 10th out of 12 (he only possesses knowledge as a king).

He was competing for the throne with the second prince Zanac and Marquis Pespea, who married the king's eldest daughter, but he lost a lot of reputation during the kingdom's demon disturbance because he did not have his own military force and could not take action. Although brave, he lacks knowledge of territorial management as he does not have his own domain, and he completely misunderstood the unwritten rule that adventurers do not belong to national organizations. While King Ramposa III, despite lacking some qualities as a king, worked hard to ensure the people could live in peace, Barbro himself believed it was natural for him to be respected and had no consideration for the socially weak.

By royal command, he led a separate unit to scout Carne Village, but lost his composure after missing the opportunity to achieve military success. He planned to take villagers as hostages in the form of conscription to use as a bargaining chip to make Ainz withdraw, but ended up clashing with the goblin army summoned by Enri and was defeated. He was later killed by Lupusregina, who pursued him. Officially, his death was not confirmed, and he is considered missing, but this incident led to the transfer of the succession rights to the second prince.