In early Osirian History, he founded the Osirian Court and removed it from history, causing it to sometimes exist in a relationship with the time of the bigger universe. He became the ruler of his home planet with his brother Sutekh. (AUDIO: Words from Nine Divinities )
Rise of Horus Edit
Although his brother, Sutekh, killed Osiris, there have been many accounts of his death and the birth of his son Horus, possibly due to the different timelines.