Her elder brother, Francis Charles Baring, married Isabella Augusta Schuster (a granddaughter of the 5th Earl of Orkney), and her younger brother, William Bingham Baring, married Georgina Margaret Campbell (daughter of Charles Hallyburton Campbell).
According to the Marquise de Fontenoy her marriage to Col. FitzGeorge "gave great offense" to his father, Prince George.
[7] George and Rosa were the parents of: She made "plenty of capital of the royal blood in the veins of her husband" and as the daughter-in-law of the Duke of Cambridge,[9] Rosa flourished in New York and Chicago as "Lady FitzGeorge" using the title in pursuit of wealthy American families to find a husband for her daughter Vera.
Through her daughter Vera,[11] she was a grandmother to Bridget Bate Tichenor, a Magic Realist painter who lived in Mexico from 1956 to 1990.
[10] Through her daughter Iris, she was a grandmother to Gen. Victor FitzGeorge-Balfour, the UK Military Representative to NATO.