Sewinch Qaya or Guàn Yúnshí (1286—30 May 1324), art name Chengzhai, later Suanzhai was an Uyghur scholar, songwriter and a famous sanqu[1] and shi[2] author lived in Mongol Empire.
He was born in 1286, Yongzhou to Guan Zhige (贯只哥) who was an ethnic Uyghur official and a son of general Ariq Qaya (1226-1286) who brought his family from Beshbalik to newly conquered Chinese provinces of Mongol Empire. Sewinch followed his father to adopt surname Guan.[3] According to one information, his sister was married to Lian Ximin, elder brother of Lian Xixian.[4] However, according to another information, his mother was Lian Ximin's daughter.
During his teen years he was distinguished by his mastery of martial arts and physical prowess. He left home at the age of 17 to serve in government. About 3 years, he served as darughachi of Jiangxi. He was appointed as garrison commander of Yongzhou in 1306, following his father's depart for chief administratorship of Huguang province. He held this post for 2 years until his resignation in February 1308. He was succeeded by his brother Quduq Qaya in this post. Sewinch himself left for Khanbaliq.
He became a disciple of Yao Sui following his arrival in Yuan capital. Sewinch prepared his first vernacular exegesis of Classic of Filial Piety under his tutelage in 1308. Following recommendation of Yao, Guan became a tutor to Shidibala, heir of Ayurbarwada until 1313. He married around this time and adopted his father's surname Guan as well. In February-March 1313 he was appointed as a member of Hanlin Academy with the rank reader-in-waiting . While working here, he participated in discussions about whether the court should adopt the Mongol system of hereditary appointments or the Chinese method of impartial exams to select officials. His tenure in academy also brought him to contact and acquaintance of scholars like Zhao Mengfu, Yu Ji (虞集), Ouyang Xuan (欧阳玄), Cheng Jufu (程鉅夫), Deng Wenyuan (邓文原) and others. However, Guan resigned on 24 March 1317 unexpectedly and was succeeded by a Mongol academician - Öljei Buqa.
He tried to focus on poetry, Chan Buddhism and Taoism following resignation from his post, meeting master Zhongfeng Mingben. He spent some time traveling South China, for example, he visited Mount Putuo during summer of 1317 before settling in Hangzhou for the rest of his retirement in 1318. He lost contact with most of his friends at the time, lived in seclusion and kept correspondence only with poet Zhang Kejiu (张可久) who visited his villa here. He worked as medicine trader for the rest of his life. He died on 30 May 1324 and was given posthumous name Wenjing (文靖) and ennobled Duke of Jingzhao (京兆公).
He was married to a daughter of Shi Tianlin (1218-1309). They had two sons called Arslan Qaya (b.) and Bars Qaya, as well as a daughter who was married to Duan Qian, garrison commander of Huaiqing. Additionally, he had two concubines named Donghua and Youcao towards the end of his life.
Sewinch Qaya remains an influential figure in sanqu poetry, his songs still played as part of kunqus. While his contemporaries like Yao Sui and Deng Wenyuan praised his works and character, Zhu Quan, relegated him to second tier poet. Known works include: