The eldest princess in Joy of Life was played by Li Xiaoran.

The eldest princess in Joy of Life was played by Li Xiaoran.
The eldest princess in Joy of Life was played by Li Xiaoran.
Joy of Life was played by the actor Dong Jingchuan.
The answer to which chapter of Joy of Life was chapter 86.
In Joy of Life, the story of the Eldest Princess took place in chapter 86 of the sixth volume.
In Joy of Life, the scene of the Eldest Princess sacrificing herself to the Crown Prince happened in chapter 86 of the sixth volume.
The maid of the Eldest Princess of Joy of Life was played by the actress Yu Xinlei.
In Joy of Life2, the Great Prince was summoned back by the Qing Emperor and married the Great Princess of Northern Qi, making him Prince Heqing. The First Prince led the army to the west and won. He also brought the daughter of the leader of the Western Hu tribe, Ma Suosuo, back to his residence. However, the Great Prince did not cherish Ma Suosuo. He sent her to Baoyue Brothel in Jiangnan for Fan Xian to take care of. As for the plot of the eldest princess, the search results did not mention the specific plot development.
Yes, the eldest princess in Joy of Life was the princess of the Qing Kingdom.
Li Xiaoran would play the role of the princess of Joy of Life.