Yayati

Yayati (Sanskrit: ययाति) was a Puranic king and the son of king Nahusha and one of ancestors of Pandavas. He had five brothers, Yati, Samyati, Ayati, Viyati and Kriti. He had two wives, Devayani and Sharmishtha. Devayani was the daughter of Shukracharya, the priest of Asuras (the demons). Sharmishtha was the daughter of the Demon King Vrishparva. Sharmishtha was a friend and servant of Devayani. After hearing of his relationship with second wife Sharmishtha from Devayani her father, sage Shukracharya, cursed Yayati to old age in the prime of life, but later allowed him to exchange it with his son, Puru. His story finds mention in the Mahabharata-Adi Parva and also Bhagavata Purana.