Nurhaci

Nurhaci (14 May 1559 – 30 September 1626), also known by his temple name as the Emperor Taizu of Qing, was the founding khan of the Jurchen-led Later Jin dynasty.
As the leader of the House of Aisin-Gioro, Nurhaci reorganized and united various Jurchen tribes (the later “Manchu”), consolidated the Eight Banners military system, and eventually launched attacks on both the Ming and Joseon dynasties. His conquest of Ming dynasty’s northeastern Liaodong region laid the groundwork for the Qing conquest of the Ming by his descendants, who proclaimed the Qing dynasty in 1636. He is also generally credited with ordering the creation of a new written script for the Manchu language based on the Mongolian vertical script.