How was prince bantugan brought back to life?

Prince Bantugan was brought back to life through the intervention of a magical bird, the "Ibong Adarna." After his death, his body was taken to the kingdom, and the king's other sons embarked on a quest to find the Ibong Adarna, which had the power to heal and revive. The bird's song, known for its restorative magic, ultimately revived Bantugan, allowing him to return to his rightful place in the kingdom.