Complex sentence: Following the fall of the capital Beijing in 1644, remnants of the Imperial family and a few ministers set up a Ming loyalist regime in Nanjing, enthroning Zhu Yousong as the Hongguang Emperor.
Split into simpler sentences: Following the fall of the capital Beijing in 1644, remnants of the Imperial family and a few ministers set up a Ming loyalist regime in Nanjing. After the fall of the Ming Dynasty, the Southern Ming regime in Nanjing enthroned Zhu Yousong as the Hongguang Emperor.