The accounts of Vishrava's far-reaching Yogic powers reached the ears of the Asura, Sumali, and his wife, Thataka. Both sought to increase their own powers through alliances with mighty Kings and Rishis. They decided that their daughter, Kaikesi would make a worthy wife for Vishrava and orchestrated her chance encounter with the Rishi. Vishrava fell in love with the beautiful Kaikesi and fathered four children with her. The oldest was Ravana who would eventually oust his half-brother, Kubera, as King of Lanka and usurp his throne. Ravana was also the villain of the immortal epic, the Ramayana.
In addition to Ravana, Vishrava fathered Vibhishana, Kumbakarna and a daughter, Soorpanaka, through Kaikesi. He is said to have disowned his demonic family after witnessing Ravana's disrespectful treatment of his older brother, Kubera and returned to his first wife, Ilavida.