Wen, emperor of the Sui Dynasty (born 541)

Emperor Wen of Sui, personal name Yang Jian (楊堅), Xianbei name Puliuru Jian (普六茹堅), was the founding emperor of the Sui dynasty of China. As a Buddhist, he encouraged the spread of Buddhism through the state.

The Sui dynasty was a short-lived Chinese imperial dynasty that ruled from 581 to 618. The re-unification of China proper under the Sui brought the Northern and Southern dynasties era to a close, ending a prolonged period of political division since the War of the Eight Princes. The Sui endeavoured to rebuild the country, re-establishing and reforming many imperial institutions; in so doing, the Sui laid much of the foundation for the subsequent Tang dynasty, who after toppling the Sui would ultimately preside over a new golden age in Chinese history. Often compared to the Qin dynasty (221–206 BC), the Sui likewise unified China after a prolonged period of division, undertook wide-ranging reforms and construction projects to consolidate state power, and collapsed after a brief period.