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.
Archduchess Maria Amalia of Austria Maria Amalia of Austria (26 February 1746 – 18 June 1804) was the Duchess of Parma, Piacenza and Guastalla by marriage. Maria Amalia was a daughter of Empress Maria Theresa and Emperor Francis I. She was thus younger sister to Joseph II, Holy Roman Emperor and older sister to Leopold II, Holy Roman Emperor, Maria Carolina, Queen of Naples and Marie Antoinette, Queen of France.