The Prefecture Apostolic of Kwang-si (now spelled Guangxi, Latin: Praefectura Apostolica Kwangsiensis) was a Roman Catholic missionary jurisdiction.
The first missionary to Guangxi was the Jesuit priest Michele de Ruggieri, who in 1583 endeavoured without success to establish himself at the capital, Guilin.
In the middle of the seventeenth century, Andrew Xavier Koffler built a church at Guilin and was baptized at Nanning, under the name of Constantine, a son of the Yongli Emperor of the Southern Ming dynasty.
In 1854, Auguste Chapdelaine first entered the province from Guizhou, but was arrested and thrown into prison in Xilin County ten days after his arrival.
He baptized several hundred catechumens, but was again arrested and taken to Xilin County, where he was sentenced to death and executed on 29 February of the same year, along with Laurence Pe-mu and Agnes Tsau-kong.
Among them was Joseph Foucard,[2] who evangelized Shangsi County while pretending to be a wood-cutter to avoid arousing the suspicions of mandarin officials.
On 6 August 1875, Pius IX made Guangxi a prefecture Apostolic, and placed it under the authority of Louis Jolly, previously missionary in Guangdong.