Complex sentence: Lu Huinan came from a humble background, and her father appeared to have been a servant to the powerful Wang clan (descendants of the Jin prime minister Wang Dao), and her brother Lu Qingzhi (路慶之) definitely was a Wang clan servant.
Split into simpler sentences: Lu Huinan came from a humble background, and her father appeared to have been a servant to the powerful Wang clan (descendants of the Jin prime minister Wang Dao). Her brother Lu Qingzhi (路慶之) definitely was a Wang clan servant.