QUOTE (Yun @ Aug 14 2008, 02:23 PM)

From the Kangxi emperor onwards, the Qing dynasty did not practice primogeniture; instead, any of the emperor's sons could be chosen as heir, and this choice was kept secret until the emperor died.
Manchus did not practice primogeniture, the eldest son and other sons had equal chance of succession.
This gives rise to a few issues
- there is no fixed heir apparent as the eldest was not always crown prince
- it allowed more capable / favourite younger son(s) a chance in succession
- it created succession disputes because there is no default heir apparent
- the problem of succession was never solved and some had been controversial eg Huangtaiji, Yong Zheng, Dao Guang, Guang Xu...
The secret edict of succession can be seen to be valid for only 3 emperors, namely Qian Long, Jiaqing and Xian Feng
Huangtaiji - chosen by a panel of imperial princes
Shun Zhi - chosen by a panel of imperial princes
Kang Xi - nominated by Shun Zhi before he died
Yong Zheng - succession controversy
Qian Long - secret edict (first of such started by Yong Zheng)
Jia Qing - secret edict
Dao Guang - no secret edict found, controversy (nominated by dowager empress?)
Xian Feng - secret edict
Tong Zhi - only son
Guang Xu - nominated by Ci Xi (Tong Zhi no issue)
Xuan Tong - nominated by Ci Xi