The Third Prince's final outcome was that Li Chengping became the new Emperor of the Qing Kingdom. After the Qing Emperor was killed by Fan Xian and Wu Zhu, the Qing Kingdom had no suitable candidate to inherit the throne. In the end, the ministers of the Qing Kingdom elected Li Chengping as the new Emperor. Even though Li Chengping did not have particularly outstanding talent, he succeeded in inheriting the throne.

The Second Prince's final ending in Sword Snow Stride " was suicide. After he failed to assassinate the Qing Emperor, he chose to commit suicide. In the end, the Second Prince and the Crown Prince both died. Their deaths were closely related to the Qing Emperor because he was their biological father. The Crown Prince and the Second Prince tried to assassinate the Qing Emperor, but both ended in failure. Before the Qing Emperor killed them, they had already committed suicide. This information came from document 1 and document 2 in the search results.
The Third Prince's final outcome was that Li Chengping became the new Emperor of the Qing Kingdom.
The Third Prince's final outcome was that Li Chengping became the new Emperor of the Qing Kingdom. After the Qing Emperor was killed by Fan Xian and Wu Zhu, the Qing Kingdom had no suitable candidate to inherit the throne. In the end, the ministers of the Qing Kingdom elected Li Chengping as the new Emperor. Even though Li Chengping did not have particularly outstanding talent, he succeeded in inheriting the throne.
The Second Prince's final outcome was that he had taken poison before Fan Xian assassinated the Qing Emperor. In the end, he died from the poison.
In Joy of Life, the Third Prince's final outcome was that he successfully replaced the Crown Prince's position and became the new Emperor of the Qing Kingdom. After the Qing Emperor was killed by Fan Xian and Wu Zhu, the Qing Kingdom had no suitable candidate to inherit the throne. In the end, the ministers of the Qing Kingdom elected Li Chengping as the new Emperor. Even though Li Chengping did not have particularly outstanding talent, he became the ruler of the Qing Kingdom after the death of the Crown Prince and the Second Prince. He could be said to be the biggest winner in life.
The Third Prince's final outcome was that Li Chengping became the new Emperor of the Qing Kingdom. After the Qing Emperor was killed by Fan Xian and Wu Zhu, the Qing Kingdom had no suitable candidate to inherit the throne. In the end, the ministers of the Qing Kingdom elected Li Chengping as the new Emperor. Even though Li Chengping did not have particularly outstanding talent, he succeeded in inheriting the throne.
In Joy of Life, the Second Prince committed suicide. He attempted to rebel, but after being suppressed by Fan Xian, he chose to commit suicide. His scheme was discovered by the Qing Emperor, which ultimately led to his failure and death. After Fan Xian became the Northern Qi Emperor, Zhan Doudou gave birth to a daughter for him. Fan Xian continued to dress up as a woman to be the Emperor.
According to the plot of Joy of Life, the First Prince played a relatively important role in the drama. His mother was Lady Ning and had Dongyi blood, which affected his path to the throne. Even so, the First Prince did not participate in the direct struggle for the throne. Instead, he was sent to guard the border, far away from the battle at the center of the imperial power. Thus, he could be considered one of the Qing Emperor's six sons with a better ending. In the movie, the First Prince chose to retreat in one piece and live in seclusion with his family, far away from the disputes of the court. His ending was relatively good. Not only did he manage to preserve his life, but he also managed to control the army and gain a certain amount of power. In addition, the marriage between the Great Prince and the Great Princess of Northern Qi was also very happy. The two of them stayed together in Dongyi and lived a happy life. Therefore, the First Prince's ending in Joy of Life was relatively satisfactory. He successfully avoided the tragedy of the struggle for the throne and enjoyed the happiness of his family.
In the novel " The Second Prince," the Second Prince's final ending was that he was ordered to die by the emperor. At the end of the novel, the second prince was deposed by the emperor for colluding with the enemy and attempting to rebel. He was also given poisoned wine. In the end, the Second Prince drank the poisoned wine in regret and unwillingness and ended his life.
The Second Prince's final ending happened in chapter 124 of the seventh volume of Joy of Life.
The Third Prince's final outcome was that Li Chengping became the new Emperor of the Qing Kingdom. After the Qing Emperor was killed by Fan Xian and Wu Zhu, the Qing Kingdom had no suitable candidate to inherit the throne. In the end, the ministers of the Qing Kingdom elected Li Chengping as the new Emperor. Even though Li Chengping did not have particularly outstanding talent, he succeeded in inheriting the throne.