How did Osiris become king?

Osiris became king after defeating his brother Set, who had killed him out of jealousy. With the help of his wife, Isis, and their son Horus, Osiris was resurrected and ultimately reclaimed his rightful throne in the afterlife. He then became the ruler of the underworld, symbolizing resurrection and eternal life, while Horus took over as the ruler of the living world. This myth highlights themes of death, rebirth, and the struggle for power in ancient Egyptian belief.