text: Marriages and issue Louisa Burnaby married the Rev. Charles Cavendish-Bentinck, as his second wife, on 13 December 1859.  Rev. Cavendish-Bentinck was the elder son of Lieutenant Colonel Lord Charles Bentinck and Anne Wellesley, formerly Lady Abdy. His paternal grandparents were William Cavendish-Bentinck, 3rd Duke of Portland, Prime Minister of Great Britain, and Dorothy Cavendish, a daughter of William Cavendish, 4th Duke of Devonshire.  Together Louisa and Charles were the parents of three children:
  Cecilia Nina Cavendish-Bentinck (1862–1938), who married Claude Bowes-Lyon, 14th Earl of Strathmore and Kinghorne.
  Ann Violet Cavendish-Bentinck (1864–1932).
  Hyacinth Cavendish-Bentinck (1864–1916); who married an American, Augustus Edward Jessup, a son of Alfred Dupont Jessup. Augustus was the widower of Lady Mildred Marion Bowes-Lyon.
  After her first husband's death in 1865, she married Henry Warren Scott, the son of Sir William Scott, 6th Baronet, of Ancrum, on 30 September 1870. He died on 23 August 1889 at Forbes House, Ham, Surrey, and was buried in St Andrew's Church, Ham.
  Louisa Scott, died aged 85, twice widowed, on 6 July 1918 at Dawlish, Devon.
  Descendants
  Through her eldest daughter Cecilia, the Countess of Strathmore and Kinghorne, she was a grandmother of Queen Elizabeth the Queen Mother and thus the great-grandmother of Queen Elizabeth II.