Complex sentence: He was later promoted to Grand Prolonger of Autumn (大長秋), in charge of the household of the Empress Liang Nüying, and served also as Coachman of the Changle Palace (長樂宮太僕) of the Dowager Liang Na.
Split into simpler sentences: He was later promoted to "Grand Prolonger of Autumn" (大長秋) and was placed in charge of the household of Empress Liang Nüying. He also served as Coachman of the Changle Palace (長樂宮太僕) of Empress Dowager Liang Na.