What is "tan-che-qua"

Tan-Che-Qua (alternatively Tan Chitqua or Tan Chetqua) (born c. 1728, fl. 1769-1772, died 1796) was a Chinese artist who visited England from 1769 to 1772. He exhibited his work at the Royal Academy in 1770, and his clay models became fashionable in London for a short period. He returned to China in 1772. After the merchant Loum Kiqua in 1756-7, and the Christian convert Michael Shen Fuzong in 1687, Tan-Che-Qua is one of the earliest Chinese people known to have visited England.