King Zhaoxiang of Qin
Because King Zhaoxiang had not yet legally come of age (traditionally at the age of 20), his mother, who was now known as Queen Dowager Xuan, became the regent. She was supported by her brothers, Wei Ran and Mi Rong (羋戎), as well as two other sons, Prince Yi (公子悝) and Prince Fu (公子巿), the four of them collectively known as the "Four Nobles" (四貴).
Borjigin
Empress Dowager Xiaozhuang (Bumbutai) was historically considered the mother of Qing dynasty. She was a concubine of Huang Taiji. Daughter of Prince Jaisang and niece of Empress Xiaoduan. Made the "Enlightened Mother Dowager Empress" (Sheng Mu Huang Tai Hou) in 1643 after the death of Emperor Hong Taiji. She died in 1688 having helped Shunzhi Emperor, her son, run the country till his death and Kangxi Emperor, her grandson, for 25 years of his reign. Xiaozhuang was an excellent politician who did not like to interfere in politics, unlike the notorious Empress Dowager Cixi. However, when the conditions required, she rendered her efforts.