David upheld his support for his niece, the former Empress-consort, who had how many children?
England and King David I The relationship between the Kingdom of England and King David I, who was King of Scotland between 1124 and 1153, was partly shaped by David's relationship with the particular King of England, and partly by David's own ambition. David had a good relationship with and was an ally of Henry I of England, the King who was largely responsible for David's early career. After Henry's death, David upheld his support for his niece, the former Empress-consort, Matilda, and expanded his power in northern England in the process, despite his defeat at the Battle of the Standard in 1138.
Empress Feng (Wencheng) Empress Feng (馮皇后) (442–490), formally Empress Wenming (文明皇后, literally "the civil and understanding empress") was an empress of the Chinese/Xianbei dynasty Northern Wei. Her husband was Emperor Wencheng. After her husband's death in 465, she overthrew the autocratic regent Yifu Hun in 466 and became regent over her stepson Emperor Xianwen and remained as such until his adulthood in 467. She subsequently had a falling-out with Emperor Xianwen (who had then become retired emperor) over his execution of her lover Li Yi (李奕), and she assassinated him and reassumed regency over his son Emperor Xiaowen in 476. While Emperor Xiaowen assumed imperial powers upon adulthood, he remained very deferential to her, and she was highly influential until her death in 490.