Question: Who led the military expedition in the province where Gong Beibi was born?

Knowledge 1: Gong Beibi
Gong Beibi () (born February 21, 1978 in Fujian, China) is a Chinese film and television actress. Beginning her career as a child actress, she later graduated from the prestigious Central Academy of Drama where she gained fame and popularity among young audiences in China after starring in several popular TV series and feature films in both China and Hong Kong. Due to her success while still a student, she became dubbed in the media at the time as "little Gong Li". [SEP] Knowledge 2: Hokkien
In 677 (during the reign of Emperor Gaozong), Chen Zheng (陳政), together with his son Chen Yuanguang (陳元光), led a military expedition to pacify the rebellion in Fujian. They settled in Zhangzhou and brought the Middle Chinese phonology of northern China during the 7th century into Zhangzhou; In 885, (during the reign of Emperor Xizong of Tang), the two brothers Wang Chao (王潮) and Wang Shenzhi (王審知), led a military expedition force to pacify the Huang Chao rebellion. They brought the Middle Chinese phonology commonly spoken in Northern China into Zhangzhou. These two waves of migrations from the north generally brought the language of northern Middle Chinese into the Fujian region. This then gradually evolved into the Zhangzhou dialect.
Knowledge 1: Gong Beibi
Gong Beibi () (born February 21, 1978 in Fujian, China) is a Chinese film and television actress. Beginning her career as a child actress, she later graduated from the prestigious Central Academy of Drama where she gained fame and popularity among young audiences in China after starring in several popular TV series and feature films in both China and Hong Kong. Due to her success while still a student, she became dubbed in the media at the time as "little Gong Li". [SEP] Knowledge 2: Sima Yuanxian
Sima Yuanxian was the son of Sima Daozi the Prince of Kuaiji, the younger brother of Emperor Xiaowu and son of Emperor Jianwen, and he was born during the reign of his uncle Emperor Xiaowu. When Emperor Xiaowu was murdered by his concubine Honoured Lady Zhang in 396, he was succeeded by Emperor An, and Sima Daozi, as the emperor's uncle, became regent. Sima Daozi's trusted associates Wang Guobao (王國寶) and Wang Xu (王緒), because of their corrupt ways, quickly drew the ires of provincial officials Wang Gong (王恭) and Yin Zhongkan (殷仲堪), and in 397, Wang Gong and Yin started a rebellion, demanding that Wang Guobao and Wang Xu be killed. Sima Daozi, apprehensive of Wang Gong and Yin's power, executed Wang Guobao and Wang Xu, and Wang Gong and Yin withdrew. It was at this juncture that Sima Yuanxian, Sima Daozi's heir apparent, who was 15 but considered intelligent and capable, warned Sima Daozi that Wang Gong and Yin would one day again rebel. Sima Daozi, trusting his son, entrusted Sima Yuanxian with his personal guards.
Knowledge 1: Qiao Guanhua
Qiao Guanhua married with diplomat Gong Peng in 1943. The two had a son, Qiao Zonghuai, who served as vice-minister of Foreign Affairs. Their daughter, Qiao Songdu, graduated from Tianjin Medical University. In 2008, she finished the book Qiao Guanhua and Gong Peng--my father and my mother ). In 1970, Gong Peng died of a cerebral hemorrhage. In 1973, Qiao Guanhua married Zhang Hanzhi, adopted daughter of the revolutionary journalist Zhang Shizhao and English interpreter for Chairman Mao himself, after she divorced Hong Junyan. Hung Huang is Qiao Guanhua's stepdaughter. Qiao Guanhua died of cancer in 1983. [SEP] Knowledge 2: Hokkien
In 677 (during the reign of Emperor Gaozong), Chen Zheng (陳政), together with his son Chen Yuanguang (陳元光), led a military expedition to pacify the rebellion in Fujian. They settled in Zhangzhou and brought the Middle Chinese phonology of northern China during the 7th century into Zhangzhou; In 885, (during the reign of Emperor Xizong of Tang), the two brothers Wang Chao (王潮) and Wang Shenzhi (王審知), led a military expedition force to pacify the Huang Chao rebellion. They brought the Middle Chinese phonology commonly spoken in Northern China into Zhangzhou. These two waves of migrations from the north generally brought the language of northern Middle Chinese into the Fujian region. This then gradually evolved into the Zhangzhou dialect.

Answer: Chen Zheng