This painting is one of the representative works of Yan Liben, a famous painter in the Tang Dynasty.
It is called "Emperor Taizong's Procession" and depicts the wedding scene of Emperor Taizong Li Shimin and Princess Wencheng.
In the painting, Emperor Taizong is wearing a magnificent dragon robe and holding the sedan chair, while Princess Wencheng is wearing a gorgeous dress and sitting in the sedan chair.
They both have a smile on their faces and look solemn.
The whole painting is full of joyful and peaceful atmosphere, showing the prosperity of the Tang Dynasty.