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.
Dugu Qieluo Dugu Qieluo (; 544 – September 10, 602), formally Empress Wenxian (文獻皇后), was an empress of the Chinese Sui dynasty. She was the wife of Emperor Wen, who, on account of his love and respect for her, as well as an oath they made while they were young, did not have any concubines for at least most of their marriage and might not have had any concubines while she was alive, an extreme rarity among Chinese emperors. She was powerful and influential during her husband's reign, and she was heavily involved in his decision to divert the order of succession from their oldest son Yang Yong to the second son Yang Guang (later Emperor Yang), often blamed by traditional historians to be the reason for Sui's downfall.