David upheld his support for his niece, the former Empress-consort, who had how many children?
Empress Matilda Empress Matilda (c. 7 February 110210 September 1167), also known as the Empress Maude, was the claimant to the English throne during the civil war known as the Anarchy. The daughter of King Henry I of England, she moved to Germany as a child when she married the future Holy Roman Emperor Henry V. She travelled with her husband into Italy in 1116, was controversially crowned in St. Peter's Basilica, and acted as the imperial regent in Italy. Matilda and Henry had no children, and when Henry died in 1125, the crown was claimed by Lothair II, one of his political enemies.
Empress Wei (Tang dynasty) Empress Wei (韋皇后, personal name unknown) (died July 21, 710) was an empress of the Chinese Tang Dynasty. She was the second wife of Emperor Zhongzong, who reigned twice, and during his second reign, she tried to emulate the example of her mother-in-law Wu Zetian and seize power. After Emperor Zhongzong's death in 710—a death traditionally believed to be a poisoning she carried out together with her daughter Li Guo'er the Princess Anle—which gave her the power to become the empress dowager, but in short order was overthrown and killed in a coup led by Emperor Zhongzong's nephew Li Longji (the later Emperor Xuanzong) and Emperor Zhongzong's sister Princess Taiping.