In Jainism, the term "Sangh" refers to a group or congregation of Jain devotees, often led by monks or acharyas, who undertake religious pilgrimages (yatra) together to sacred sites. The year "1657" in your question likely refers to the Vikram Samvat era, a traditional Hindu calendar used often in Jain historical records.

Satrunjay (Shatrunjaya) Hill near Palitana in Gujarat is one of the most sacred pilgrimage places for Jains, especially the Svetambara sect. It is renowned for its cluster of temples and its association with Tirthankara Rishabhdev (Adinath).

The 1657 Sangh to Satrunjay:

• The "1657 Sangh" refers to a famous pilgrimage group that visited Shatrunjaya in Vikram Samvat 1657, which corresponds to 1600 CE in the Gregorian calendar.
• These historical Sanghs are significant in Jain history because they often marked the renovation, reconstruction, or consecration (pratishtha) of temples and idols.
• The records of such Sanghs are preserved in "Pattavalis" (chronicles) and temple inscriptions. They often list prominent donors, leading monks, and important events during the pilgrimage.
• The 1657 VS Sangh is particularly remembered because it was one of the grand pilgrimages after the area was made accessible to Jains, following periods when access was restricted due to political or social circumstances.

Importance:

• Such Sanghs are a matter of pride and spiritual merit for participants.
• The 1657 Sangh to Satrunjay is celebrated in Jain literature and oral tradition, and it is often referenced in connection with the restoration and embellishment of the Palitana temples.

If you are seeking more detailed historical accounts or names associated with this specific Sangh, they are often recorded in the temple archives at Palitana and in Jain historical texts, sometimes listing the leaders, donors, and the specific works accomplished during the pilgrimage.

If you want information about a particular aspect of the 1657 Sangh or its relevance in Jain culture, please specify, and I can provide more details!