father yang jian 
A courtesy name (" zi "), also known as a style name , is a name bestowed upon one at adulthood in addition to one ' s given name . This practice is a tradition in East Asian cultures , including China , Japan , Korea , and Vietnam . Dou Jiande ( 573  August 3 , 621 ) was a leader of the agrarian rebels who rose against the rule of ___MASK67___ near the end of the Chinese Sui dynasty . Generally considered the kindest and most able of the agrarian rebel leaders of the time , he was eventually able to capture the modern Hebei region and declare himself initially the Prince of Changle , and then the Prince of Xia . In 621 , when the Tang dynasty general Li Shimin ( later Emperor Taizong ) attacked Wang Shichong the Emperor of Zheng , who ruled the modern Henan region , Dou believed that if Tang were able to destroy Zheng , his own Xia state would suffer the same fate , and therefore went to Wang ' s aid , against the advice of his strategist Ling Jing (  ) and his wife Empress Cao . Li defeated him at the Battle of Hulao , capturing him . Li ' s father Emperor Gaozu of Tang subsequently put Dou to death . Xia territory was briefly seized by Tang , but soon Dou ' s general Liu Heita rose against Tang rule , recapturing Dou ' s territory , and held out against Tang until 623 . Yuwen Huaji ( died 619 ) was a general of the Chinese Sui Dynasty who , in 618 , led a coup against ___MASK67___ , killing him . He subsequently declared Emperor Yang ' s nephew Yang Hao emperor and led Emperor Yang ' s elite Xiaoguo Army (  ) north , but was then repeatedly defeated by Li Mi , Li Shentong (  ), and finally Dou Jiande . Believing that his defeat was near and wanting to be emperor before his ultimate defeat , he poisoned Yang Hao and declared himself the emperor of a Xu state . Dou captured him in 619 and killed him . Yang Jian ( Chinese :  ; 585 -- 618 ) , courtesy name Shiku (  ) , nickname Ahai (  ) , was an imperial prince of the Chinese Sui Dynasty . During the reign of his father Emperor Yang , he carried the title of Prince of Qi . When his father was killed in a coup led by the general Yuwen Huaji in 618 , Yang Jian and his sons were also killed . The Sui Dynasty was a short - lived imperial dynasty of China of ___MASK16___ significance . The Sui unified the Northern and Southern dynasties and reinstalled the rule of ethnic Han Chinese in the entire China proper , along with sinicization of former nomadic ethnic minorities within its territory . It was succeeded by the Tang dynasty , which largely inherited its foundation . ___MASK67___ (  , 569  April 11 , 618 ), personal name Yang Guang (  ), alternative name Ying (  ), nickname Amo (  ), known as Emperor Ming (  ) during the brief reign of his grandson Yang Tong ), was the second son of Emperor Wen of Sui , and the second emperor of China ' s Sui dynasty . China , officially the People ' s Republic of China ( PRC ), is a unitary sovereign state in East Asia . With a population of over 1 . 381 billion , it is the world ' s most populous country . The state is governed by the Communist Party of China , and its capital is Beijing . It exercises jurisdiction over 22 provinces , five autonomous regions , four direct - controlled municipalities ( Beijing , Tianjin , Shanghai , and Chongqing ), and two mostly self - governing special administrative regions ( Hong Kong and Macau ), and claims sovereignty over Taiwan . The country ' s major urban areas ___MASK62___ Shanghai , Guangzhou , Beijing , Chongqing , Shenzhen , Tianjin and Hong Kong . China is a great power and a major regional power within Asia , and has been characterized as a potential superpower .