Twice Removing the Crown Prince
One of the greatest mysteries of the Qing Dynasty was the event of Kangxi's will, which along with three other events, are known as the "Four greatest mysteries of the Qing Dynasty". To this day, whom Kangxi chose as his successor is still a topic of debate amongst historians, even though, supposedly, he chose
Yinzhen, the 4th Prince, who was to become emperor
Yongzheng. Many claimed that Yongzheng forged the will, and some suggest the will had chosen
Yinti, the 14th Prince, who was apparently the favourite, as successor. However, there is strong evidence that Kangxi had in fact chosen Yinzhen as his successor.
Kangxi's
first Empress gave birth to his second surviving son
Yinreng, who was at age 2 named
Crown Prince of the Great Qing Empire, which at the time, being a
Han Chinese custom, ensured stability during a time of chaos in the south. Although Kangxi let several of his sons to be educated by others, he personally brought up Yinreng, intending to make him the perfect heir.
Yinreng was tutored by the esteemed mandarin
Wang Shan, who was deeply devoted to the prince, and who was to spend the latter years of his life trying to revive Yinreng's position at court. Through the long years of Kangxi's reign, however, factions and rivalries formed. Those who favored Yinreng, the 4th Imperial Prince
Yinzhen, and the 13th Imperial Prince
Yinxiang had managed to keep them in contention for the throne. Even though Kangxi favoured Yinreng and had always wanted the best out of him, Yinreng did not prove co-operative.
He was said to have very cruel habits, beaten and killed his subordinates, alleged to have had sexual relations with one of Kangxi's concubines, which was defined as incest and a capital offense, and purchased young children from the
Jiangsu region for his pleasure. Furthermore, Yinreng's supporters, led by
Songgotu, had gradually developed a "Crown Prince Party" (太子黨). The faction, among other objectives, wished to elevate Yinreng to the Throne as soon as possible, even if it meant using unlawful methods.
Over the years the aging Emperor had kept constant watch over Yinreng, and he was made aware of many of his flaws. The relationship between father and son gradually worsened. Many thought that Yinreng would permanently damage the Qing Empire if he were to succeed the throne. But Kangxi himself also knew that a huge battle at court would ensue if he was to abolish the Crown Prince position entirely. Forty-six years into Kangxi's reign (
1707), Kangxi decided that "after twenty years, he could take no more of Yinreng's actions, which he partly described in the Imperial Edict as "too embarrassing to be spoken of", and decided to demote Yinreng from his position as Crown Prince.
With Yinreng rid of and the position empty, discussion began regarding the choice of a new Crown Prince.
Yinzhi (), Kangxi's eldest surviving son, the Da-a-go (大阿哥), was placed to watch Yinreng in his newly found house arrest, and assumed that because his father placed this trust in himself, he would soon be made heir.
The 1st Prince had at many times attempted to sabotage Yinreng, even employing witchcraft. He went as far as asking Kangxi for permission to execute Yinreng, thus enraging Kangxi, which effectively erased all his chances in succession, as well as his current titles. In Court, the Eighth Imperial Prince,
Yinsi, seemed to have the most support among officials, as well as the Imperial Family.
In diplomatic language, Kangxi advised that the officials and nobles at court to stop the debates regarding the position of Crown Prince. But despite these attempts to quiet rumours and speculation as to who the new Crown Prince might be, the court's daily businesses were strongly disrupted. Furthermore, the 1st Prince's actions led Kangxi to think that it may have been external forces that caused Yinreng's disgrace. In the Third Month of the 48th Year of Kangxi's reign (
1709), with the support of the 4th and 13th Imperial Princes, Kangxi re-established Yinreng as Crown Prince to avoid further debate, rumours and disruption at the imperial court. Kangxi had explained Yinreng's former wrongs as a result of mental illness, and he had had the time to recover, and think reasonably again.
In
1712, during Kangxi's last visit south to the
Yangtze region, Yinreng and his faction yet again vied for supreme power. Yinreng ruled as
regent during daily court business in
Beijing. He had decided, with bad influence from many of his supporters, to allow an attempt at forcing Kangxi to
abdicate when the Emperor returned to Beijing. Through several credible sources, Kangxi had received the news, and with power in hand, using strategic military manoeuvring, he saved the Empire from a
coup d'etat. When Kangxi returned to Beijing in December 1712, he was enraged, and removed the Crown Prince once more. Yinreng was sent to court to be tried and placed under house arrest.
Kangxi had made it clear that he would not grant the position of Crown Prince to any of his sons for the remainder of his reign, and that he would place his Imperial Valedictory Will inside a box inside
Qianqing Palace, only to be opened after his death, and thus no one knew Kangxi's real intentions. What was on his will is subject to intense historical debate.