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.
Princess Sophie of the Netherlands Princess Sophie of the Netherlands (Wilhelmine Marie Sophie Louise; 8 April 1824 – 23 March 1897) was the only daughter and last surviving child of King William II of the Netherlands and of his wife Grand Duchess Anna Pavlovna of Russia. She was heir presumptive to her niece, Queen Wilhelmina of the Netherlands, for seven years, from the death of her brother until her own death.