Who is the prototype of Lv Chang?

Zhang Chang, a political figure in the late Yuan Dynasty and early Ming Dynasty.

According to Wikipedia, Lv Chang is a fictional character in the TV series Zhu Yuanzhang, and his prototype is Zhang Chang, a political figure in the late Yuan and early Ming Dynasties. Zhang Chang was once the prime minister of the Yuan Dynasty and was good at managing money. Later, he was recruited by Zhu Yuanzhang and was appointed as the Zhongshu Province of the Ming Dynasty to participate in political affairs. Because he missed his hometown and relatives, he wrote a private letter to Yuan officials in the north, which was discovered and reported by Yang Xian, and was finally executed by Zhu Yuanzhang.