After Wu Zetian became emperor, her emotional life attracted quite a lot of attention. She had many male favorites. Among them, Xue Huaiyi was originally a man in the market. He became famous because of Wu Zetian's favor. Later, he relied on her favor and became arrogant. Shen Nanqiu was an imperial physician who was favored after Xue Huaiyi, but due to poor health, they did not stay with him for a long time. The most famous are undoubtedly the brothers Zhang Yizhi and Zhang Changzong. They were young and beautiful. They were favored by virtue of their talents and good looks. They were so powerful that they even interfered in the government affairs and caused many disputes in the court.