The sons sired by Kaśyapa (Kasyapa) Prajāpati (Prajapati; Ruler of the people), and born of the womb of Danu, daughter of Dakṣa (Daksha), were called Dānava (Danava). Aśvaprabha (Aswaprabha) was one of these sons of Danu. According to Vāyupurāṇa, the names of two Dānava(s) called Ariṣṭa (Arishta)and Ṛṣabha (Rishabha) have been mentioned.