Complex sentence: Having thus entered through the Great Wall, the Manchus seized Beijing on June5, and eventually defeated both the rebel-founded Shun dynasty and the remaining Ming resistance, establishing Qing rule over all of China.
Split into simpler sentences: Having thus entered through the Great Wall, the Manchus seized Beijing on June5. They eventually defeated both the rebel-founded Shun dynasty and the remaining Ming resistance, establishing Qing rule over all of China.