Xuanzong of the Tang Dynasty was an emperor during the Tang Dynasty. He was the longest reigning emperor in the history of the Tang Dynasty. Emperor Xuanzong of the Tang Dynasty had a son named Li Hao, and Li Hao had a wife named Yang Yuhuan. Yes, you read that right, Yang Yuhuan is one of the four beauties in Chinese history. So the question is, Yang Yuhuan is his son's wife, which means she is Tang Xuanzong's daughter-in-law, but why did Yang Yuhuan become Tang Xuanzong's concubine in the end? Let’s find out what this is all about.

In 754 AD, Emperor Xuanzong Li Longji changed into casual clothes on a whim, took a few personal servants, and staggered to the bank of Qujiang River outside Chang'an City. Walking and playing, playing and walking, suddenly, Emperor Xuanzong felt his eyes light up. Among the piles of makeup and powder, he suddenly discovered a wonderful beauty. This woman looked straight into the eyes of Emperor Xuanzong. Gao Lishi, who was accompanying him, was such a smart man. When he saw this, he immediately called a young eunuch and ordered him to find out who the woman was immediately. It turned out that she was Li Mao's wife, but even so, it still couldn't stop Tang Xuanzong from being obsessed with her.

After Yang Yuhuan became the imperial concubine, the Yang family also benefited from it. Emperor Xuanzong issued an order: Yang Xuanyan, Yang Yuhuan's father, was posthumously named Taiwei Qi Guogong, and his mother was the Lady of Liangguo. Yang Yuhuan's uncle Yang Xuansi was granted the title of Guanglu Qing, his elder brother (cousin of the same grandfather) Yang Zhao was appointed as Honglu Qing, Yang Qi was appointed as Shi Yushi, and his elder brother Yang Zhao joined the army as Jinwu Bingcao.

In this way, in order to satisfy his own selfish desires, Emperor Xuanzong of the Tang Dynasty turned his daughter-in-law into his concubine. Although this was a bit against the rules, who called him the emperor? In that era, the emperor was the rule. Since then, Yang Yuhuan's family members have also ascended to heaven because of one person's enlightenment. This may not be a good thing for Yang Yuhuan, but it may be a pain for Li Mao, who was cuckolded by his own father.