I was surprised to find Zhu in Shi Zhou and Chou Ying. Why did Chou Ying leave a mark on this painting?

I went to Jiang Ying Art Network to see Huang Tingjian's high-definition picture of Songfengge. According to the time sequence analysis of the imprint, Songfengge was collected by Jia Sidao, Yang Meizi and others in the Song and Yuan Dynasties. In the middle of Ming Dynasty, it belonged to Xiangbianyuan, and then to Chou Ying. Wu's calligraphy and painting circles are fond of collecting, which has become a common practice since Shen Zhou, but as far as I know, there is no information collected by Chou Ying in the literature. Therefore, the appearance of these two seals is really surprising. It may be that Chou Ying put his name on Song Feng Pavilion in Xiang's Collection during the period of Xiang's copying the ancient times. Chou Ying is neither a collector nor a famous calligrapher, so it is impossible to increase the weight of his works after the seal is printed. Judging from the comprehensive information such as the trace of the family line, the collection resume and the special seal in Xiang's home, Xiang is most likely to use the collection as a pen fee.