In Jainism,
Rishabh Dev (ऋषभदेव) or Adinatha (आदिनाथ) (other names used:
Riṣhabh, Riṣhabhanāth, Rushabh, Rushabhdev,
Adinath or Adishwar or Kesariyaji; Sanskrit ṛṣabha meaning "best, most excellent") was the
first of the 24 Tirthankara. He belonged to
the House of Ikshwaku,
which was also known as the "House of the Sun".