The 1911 chinese revolution ended the rule of the -manchus -qing -song -mongolians

The answer was the Qing.  It was also known as the Xinhai Revolution that led to the removal of the Qing Dynasty and the founding of the Republic of China.  The cause of the Revolution was due to the failure of the Qing to modernize the country.  This began a series of revolts in the country. The Revolution ended when the last emperor Puyi stepped down from the throne on February 12, 1912 and this ended 2,000 years of Imperial rule and the beginning of China’s Republican Era.