How many people in history are called Yang Du?

There must be someone with the same name, but there is a famous one, that is, Yang Du, who experienced the Qing Dynasty, the Republic of China and New China, saw the Reform Movement of 1898, became a royalist, supported Yuan Shikai's restoration of monarchy, supported constitutional monarchy, joined the League, became the Kuomintang, and finally joined the * * * production party.