Who is XXX's dad?
Wang Jingchong
At that time, his grandfather Wang Yuankui ruled Chengde Circuit in de facto independence from the imperial government, but maintained a good relationship with the imperial government and largely followed imperial orders; he also married a Tang imperial princess (Princess Shou'an, a granddaughter of Emperor Xuānzong's father Emperor Xianzong. Wang Jingchong's father Wang Shaoding was the oldest son of Wang Yuankui's, by Princess Shou'an, and served as Wang Yuankui's deputy. Wang Jingchong himself, while not the oldest among his brothers (he had at least one older brother, Wang Jingyin (王景胤), and at least one younger brother, Wang Jingyu (王景敔)), was the oldest (or only) son of Wang Shaoding's wife, and therefore viewed as the eventual heir of Wang Shaoding. Wang Yuankui died in 855, and Wang Shaoding succeeded him, with imperial sanction. Wang Shaoding, however, was said to mistreat his people and waste his time on feasts, leading to the soldiers plotting rebellion. Before any plot came to fruition, however, Wang Shaoding died of illness, and the soldiers supported his younger brother (and Wang Jingchong's uncle) Wang Shaoyi as his successor. Emperor Xuānzong approved the succession. During Wang Shaoyi's military governorship, Wang Jingchong served as the acting commandant of Chengde's capital Zhen Prefecture
Wang Shaoding