What historical evidence exists for Parshvanatha?

Parshvanatha is recognized as the 23rd Tirthankara of Jainism and is the earliest figure in the tradition for whom historical evidence exists. However, this evidence is deeply intertwined with legend.1

Historical accounts suggest that Parshvanatha lived approximately 250 years before Mahavira, the final Tirthankara. While tradition states that Mahavira’s parents followed Parshvanatha’s teachings, there is no definitive proof that Mahavira himself joined a religious order established by him.1

The historical link between the two is primarily found in their shared ascetic practices. Parshvanatha established the "fourfold restraint"—the vows of non-violence, non-stealing, truthfulness, and non-possession. These became the foundation for the five mahavratas (great vows) of Jainism after Mahavira added the vow of celibacy. Tradition holds that the followers of Parshvanatha eventually reconciled their practices with Mahavira’s reforms, such as the adoption of complete nudity for ascetics, which differed from Parshvanatha’s allowance of garments.1