Champapuri (Champapur) is a sacred Jain site in Bihar, known as a Siddhakshetra where many great events in the lives of Tirthankaras are held to have occurred. The most emphasized story is about Vasupujya, the 12th Tirthankara, whose five Kalyankas (auspicious events: conception, birth, renunciation, enlightenment, and moksha) are said to have taken place there. It is also believed that Adinath (Rishabhanatha), Parshvanath, and Mahavira visited Champapur and even stayed there during their monsoon periods (Chaturmas). In particular, Mahavira is said to have had his third and twelfth monsoon stays at Champapur. The place is thus presented in Jain tradition as a key spiritual center linking several Tirthankaras and ascetic legends. Today, a temple to Vasupujya and the Champapur tirtha attract pilgrims from many Jain sects.

• You can read more here

Note for tradition:

• Digambar and Śvetāmbara narratives both acknowledge Champapur’s importance, but some details (such as exact lists of who visited or stayed there) may vary between traditions. The core theme—Champapur as a revered Siddha Kshetra connected with Vasupujya and Mahavira’s visits—remains widely accepted in Jain lore.

If you’d like, I can share a brief, simple retelling in a few lines suitable for teaching children, or pull out a few key verses from Jain scriptures that mention Champapur.