Who are the famous big Huizhou merchants in the late Ming Dynasty?

Bi Cheng, a Huizhou merchant, lived in Jiangyin County for a long time at the end of Ming Dynasty, mainly engaged in 18 shops, and was one of the richest people in Jiangyin. 1645, Chen Mingyu presided over the anti-Qing guarding city, and was in urgent need of a large number of weapons and materials. Bi Cheng took the lead in raising funds and resolutely donated silver100,000 taels (he has exhausted his family wealth). Later, Bi Cheng was ordered to contact the reinforcements who left the city. He worked tirelessly, running around, and finally came to nothing. By the time he came back, Jiangyin County had been breached and the whole city was slaughtered. Finally, disheartened, he became a monk.