Original: Nurhaci ( Manchu : ; ; alternatively Nurhachi ; February 21 , 1559 - September 30 , 1626 ) was an important Manchu chieftain who rose to prominence in the late 16th Century in what is today Northeastern China .
Simplified: In 1616 AD , Nurhaci declared himself Khan ( King ) and founded the Jin Dynasty in Liao Ling .