Cuentos del reino, 5

The crown prince of the kingdom of Sharibalte leads a solitary life in the vast royal palace. The loss of his mother, his enmity with his half-brother Magreb, the death of his father... Finally, he ascends the throne and is praised for his handsome appearance, earning him the nickname "Moonlight Monarch." The valiant king launches a war of invasion against neighboring countries and marries Olga, the twelfth princess of the coastal kingdom of Pean, but the princess he takes in is still just a child...