According to the information provided, it was impossible to determine who would die first between the Crown Prince and the Second Prince.

In Joy of Life, the Second Prince died first. In the novel, the Second Prince was killed by the Eldest Princess Li Yunrui and Minister Lin. The Crown Prince was ordered to die by the Qing Emperor at the end of the novel.
According to the information provided, it was impossible to determine who would die first between the Crown Prince and the Second Prince.
Prince chose to commit suicide in Joy of Life. After the Qing Emperor learned of the relationship between the Crown Prince and the Eldest Princess, he abolished the Crown Prince and placed the Eldest Princess under house arrest. After the Eldest Princess failed to assassinate the Qing Emperor, the Crown Prince and Eldest Princess decided to commit suicide. The Crown Prince and the Eldest Princess had a relationship that transcended ethics. In order to take revenge on the Eldest Princess, Fan Xian told the Qing Emperor about the special relationship between the Crown Prince and the Eldest Princess. After the Qing Emperor learned, he put the Eldest Princess under house arrest and prepared to abolish the Crown Prince. After the Eldest Princess learned that the Qing Emperor wanted to abolish the Crown Prince, she secretly joined forces with the Qin family and the Ye family to plan to kill the Qing Emperor and elect the Crown Prince. However, the Ye family was the Qing Emperor's spy. The Eldest Princess 'plan had been leaked from the beginning. After the Eldest Princess 'rebellion failed, the Eldest Princess and Crown Prince chose to commit suicide.
Prince chose to commit suicide in Joy of Life. After the Qing Emperor learned of the relationship between the Crown Prince and the Eldest Princess, he abolished the Crown Prince and placed the Eldest Princess under house arrest. After the Eldest Princess failed to assassinate the Qing Emperor, the Crown Prince and Eldest Princess decided to commit suicide. The Crown Prince and the Eldest Princess had a relationship that transcended ethics. In order to take revenge on the Eldest Princess, Fan Xian told the Qing Emperor about the special relationship between the Crown Prince and the Eldest Princess. After the Qing Emperor learned, he put the Eldest Princess under house arrest and prepared to abolish the Crown Prince. After the Eldest Princess learned that the Qing Emperor wanted to abolish the Crown Prince, she secretly joined forces with the Qin family and the Ye family to plan to kill the Qing Emperor and elect the Crown Prince. However, the Ye family was the Qing Emperor's spy. The Eldest Princess 'plan had been leaked from the beginning. After the Eldest Princess 'rebellion failed, the Eldest Princess and Crown Prince chose to commit suicide.
Joy of Life Prince chose to commit suicide. After the Qing Emperor learned of the relationship between the Crown Prince and the Eldest Princess, he abolished the Crown Prince and placed the Eldest Princess under house arrest. After the Eldest Princess failed to assassinate the Qing Emperor, the Crown Prince and Eldest Princess decided to commit suicide. The Crown Prince and the Eldest Princess had a relationship that transcended ethics. In order to take revenge on the Eldest Princess, Fan Xian told the Qing Emperor about the special relationship between the Crown Prince and the Eldest Princess. After the Qing Emperor learned, he put the Eldest Princess under house arrest and prepared to abolish the Crown Prince. After the Eldest Princess learned that the Qing Emperor wanted to abolish the Crown Prince, she secretly joined forces with the Qin family and the Ye family to plan to kill the Qing Emperor and elect the Crown Prince. However, the Ye family was the Qing Emperor's spy. The Eldest Princess 'plan had been leaked from the beginning. After the Eldest Princess 'rebellion failed, the Eldest Princess and Crown Prince chose to commit suicide.
Prince chose to commit suicide in Joy of Life. After the Qing Emperor learned of the relationship between the Crown Prince and the Eldest Princess, he abolished the Crown Prince and placed the Eldest Princess under house arrest. After the Eldest Princess failed to assassinate the Qing Emperor, the Crown Prince and Eldest Princess decided to commit suicide. The Crown Prince and the Eldest Princess had a relationship that transcended ethics. The Eldest Princess had sent people to assassinate Fan Xian, but Fan Xian had escaped. In order to take revenge on the Eldest Princess, Fan Xian told the Qing Emperor about the special relationship between the Crown Prince and the Eldest Princess. After the Qing Emperor learned, he put the Eldest Princess under house arrest and prepared to depose the Crown Prince. After the Eldest Princess learned of the Qing Emperor's plan, she secretly joined forces with the Qin family and the Ye family in an attempt to kill the Qing Emperor and let the Crown Prince ascend the throne. However, the Ye family was the Qing Emperor's spy. The Eldest Princess 'plan had been leaked from the beginning. After the Eldest Princess 'rebellion failed, the Eldest Princess and Crown Prince chose to commit suicide.
Crown Prince and Crown Prince were two different titles. According to the documents of Noble Prisoner and Nanjing Daily, Zhu Biao was the son of Zhu Yuanzhang and was made the heir and crown prince. And according to the documents of Great Ming Elegance, the conversation between the Crown Prince and the Crown Princess showed that they were a couple and had a son. According to the document " The Hat of a Prince of the Ming Dynasty "," A Study of the Apparels Unearthed from the Tomb of the King Huang of the Ming Dynasty ", the royal family members below the emperor of the Ming Dynasty, such as the crown prince, the prince, and the prince, had some differences in their clothing. In summary, the crown prince and the shizi were different titles. The crown prince referred to the emperor's son, while the shizi referred to the emperor's eldest son.
There were different opinions on whether the Third Prince was the Crown Prince or not. Some documents stated that the Third Prince of the Qing Dynasty was the Crown Prince, while others believed that the Crown Prince and the Third Prince were different people. According to the relevant documents, the Crown Prince was the Qing Emperor's eldest son, and the Third Prince was the Qing Emperor's fourth son. Although the Qing Emperor initially wanted to support the Crown Prince as the successor, he eventually abolished the Crown Prince and placed the Eldest Princess under house arrest. In the plot, the Third Prince became the Emperor of the Qing Kingdom. Therefore, according to the information provided, the Third Prince of the Qing Dynasty was not the Crown Prince.
The Prince of Joy of Life died in chapter 124 of the seventh volume of the novel.
The Crown Prince and the First Prince in Joy of Life were not the same person. The Crown Prince was older than the Eldest Prince. The Crown Prince was conferred the title of Crown Prince the moment he was born and was not in the Prince Sequence. The First Prince's mother was not the Empress. Therefore, it could be concluded that the First Prince of Joy of Life was not the Crown Prince.