In Jainism, Rishabhanath (also called Adinath) is the first Tirthankar of this cosmic half-cycle. Like all Tirthankaras, he is believed to have lived many (countless) previous lives before attaining kevalajñāna and Moksha. The stories of his prior births are told in Jain scriptures, and there are differences between Digambar and Śvetāmbara traditions about some details.

Key points you can remember:

• Rishabhanath is said to have gone through multiple births before becoming a Tirthankar.
• The exact names or events of those earlier lives vary between Digambar and Śvetāmbara sources.
• The traditional arc is: many lifetimes of virtuous practice, renunciation, and spiritual refinement leading to enlightenment and Moksha.

If you’d like, I can point you to a specific JainKnowledge page that discusses Adinath and his prior lives (with notes on Digambara vs. Śvetāmbara differences).