Here are some clues from the movie:
* The architecture and costumes: The buildings, clothing, and weapons all have a medieval European aesthetic.
* The presence of a king and a royal family: The story revolves around a king and his two sons, indicating a monarchy.
* The emphasis on chivalry and honor: The film explores themes of loyalty, betrayal, and revenge, which are common in medieval literature.
Therefore, while the specific location is not mentioned, the film's setting can be identified as a fictional medieval kingdom.