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.
Élisabeth Charlotte d'Orléans Élisabeth Charlotte d'Orléans (13 September 1676 – 23 December 1744) was a French "petite-fille de France", and duchess of Lorraine and Bar by marriage to Leopold, Duke of Lorraine. She was regent of Lorraine and Bar during the minority (1729-30) and absence of her son 1730-37), and "suo jure" Princess of Commercy in 1737-44. Among her children was Francis I, Holy Roman Emperor, a co-founder of the House of Habsburg-Lorraine.