Hanuman was born into the Benaras. His mom Anjana was an apsara who was born on earth on account of a curse. She was redeemed from this curse on supplying beginning to some son. The Valmiki Ramayana states that his father Kesari was the son of Rahu and was he was the King of the place named Sumeru. Historical Importance: https://hanumanmandiradelaide.com.au/how-to-do-pooja-on-hanuman-jayanti-a-step-by-step-guide-for-a-meaningful-celebration/