Erelandia is a location in the 1985 animated series She-Ra: Princess of Power.
She-Ra: Princess of Power
Erelandia, also known as King Duplis' Kingdom is located on the planet Etheria. It's ruler, King Duplis, feared the Evil Horde and dutifully paid the taxes Hordak demanded. But Duplis' son, Prince Hazar secretly fed information about the Horde to the Great Rebellion.
When Hazar was caputured while attempting to join the Rebellion, he was immediatley sent off planet to work in the Mines of Mondor on the planet Krytis. His father pleaded with Queen Angella to help rescue his son, for feared that the dangerous minerals found in the mines would affect Hazar's health.
When the Rebels managed to free Hazar and return him to Etheria, Duplis still had no intention of joining the Great Rebellion out of his undying fear for the Horde as well as his love for his only child. Queen Angela's words finally managed to persuade the King to see the errors of his way and agree with his son to join the side of the Rebels.