How did the Eldest Princess know that Yan Bingyun was a spy?

The Eldest Princess didn't mention the specific clues that Yan Bingyun was a spy. However, according to the relevant documents, the Eldest Princess was suspected of betraying Yan Bingyun. In one conversation, she was questioned why Northern Qi had ordered Yan Bingyun's arrest not long after he was captured. This hinted that the Eldest Princess might be related to Zhuang Mohan, because not long after they had discussed learning in the palace, Northern Qi had received news of Yan Bingyun's arrest. However, this clue had not been fully verified, so it was impossible to determine how the Eldest Princess knew Yan Bingyun's true identity.

Yan Bingyun's relationship with the Eldest Princess was because the Eldest Princess had betrayed Yan Bingyun's identity. Eldest Princess Li Yunrui revealed Yan Bingyun's identity as a spy, causing him to be controlled by Northern Qi and tortured. In exchange for Northern Qi's conditions, the Eldest Princess sold Yan Bingyun out to the Northern Qi Emperor. Therefore, it could be said that the Eldest Princess was the mastermind behind Yan Bingyun's identity being leaked.

The relationship between Yan Bingyun and the Eldest Princess was that the Eldest Princess had betrayed Yan Bingyun's identity. Eldest Princess Li Yunrui revealed Yan Bingyun's identity as a spy, causing him to be controlled by Northern Qi and tortured. In exchange for Northern Qi's conditions, the Eldest Princess sold Yan Bingyun out to the Northern Qi Emperor. Therefore, it could be said that the Eldest Princess was the mastermind behind Yan Bingyun's identity being leaked.

The relationship between Yan Bingyun and the Eldest Princess was because the Eldest Princess had betrayed Yan Bingyun's identity. Eldest Princess Li Yunrui revealed Yan Bingyun's identity as a spy, causing him to be controlled by Northern Qi and tortured. In exchange for Northern Qi's conditions, the Eldest Princess sold Yan Bingyun out to the Northern Qi Emperor. Therefore, it could be said that the Eldest Princess was the mastermind behind Yan Bingyun's identity being leaked.

The news of Eldest Princess Li Yunrui betraying Yan Bingyun had spread throughout the capital. The Eldest Princess used her authority to sell Yan Bingyun's identity to the Northern Qi Emperor as the spy leader of the Inspection Council that the Qing Kingdom had placed in Northern Qi. She used this to negotiate and exchange for Xiao En and Si Lili as hostages. This news caused a sensation in the capital because Yan Bingyun was a secret agent of the Qing Kingdom. His identity being exposed was a huge loss to the Qing Kingdom. The Eldest Princess's actions aroused the Qing Emperor's anger. In the end, the Eldest Princess was driven out of Jingdou and returned to her fief, Xinyang. The Eldest Princess 'betrayal spread throughout the capital, attracting the attention and discussion of the people.

The relationship between the Eldest Princess and Yan Xiaoyi was that of a saviour and a saviour. When Yan Xiaoyi's family was killed, he was the only survivor. When the Eldest Princess passed by, she saved him and raised him, giving him a new chance and life. The Eldest Princess had also nurtured Yan Xiaoyi's martial arts, making him an expert. Thus, Yan Xiaoyi was loyal to the Eldest Princess and was willing to risk his life to protect her. The relationship between them could be said to be very close.

The relationship between the Eldest Princess and Yan Xiaoyi was that of a saviour and a saviour. When Yan Xiaoyi's family was killed, he was the only survivor. When the Eldest Princess passed by, she saved him and raised him, giving him a new chance and life. The Eldest Princess had also nurtured Yan Xiaoyi's martial arts, making him an expert. Their relationship could be said to be one of mutual dependence and protection.

The relationship between the Eldest Princess and Yan Xiaoyi was that of a savior and protector. When Yan Xiaoyi's family was killed, he was the only survivor. When the Eldest Princess passed by, she saved him and raised him, giving him a new life. The Eldest Princess had also nurtured Yan Xiaoyi's martial arts, making him an expert. Thus, Yan Xiaoyi was loyal to the Eldest Princess and was willing to risk his life to protect her. The relationship between them could be said to be very close.

The relationship between Yan Xiaoyi and the Eldest Princess was that of a savior to a savior. When Yan Xiaoyi was young, his family met with an accident. His entire family was killed, and he was the only survivor. At that time, the Eldest Princess passed by there and saved him and raised him by her side, giving him a new life. Thus, Yan Xiaoyi was loyal to the Eldest Princess and was willing to risk his life to protect her. There was a deep emotional bond between them.

The relationship between the Eldest Princess and Yan Xiaoyi was that of a saviour and a saviour. When Yan Xiaoyi's family was killed and he was the only survivor, the Eldest Princess passed by and saved him, adopted him, and raised him. Thus, Yan Xiaoyi was deeply grateful to the Eldest Princess and swore to protect her with his life. The Eldest Princess had also been of great help and support to Yan Xiaoyi. She had nurtured his martial arts and made him an expert. The relationship between them could be said to be very close.