"Princess Augusta of Saxe-Gotha-Altenburg (30 November 1719 – 8 February 1772) was Princess of Wales by marriage to Frederick, Prince of Wales. She was one of ...
only four Princesses of Wales who never became queen consort, as her eldest son succeeded her father-in-law as George III of the United Kingdom in 1760 rather than her spouse, who had died nine years earlier. Augusta was presumptive regent of Great Britain in the event of a regency between the death of her spouse in 1751, until the majority of her son in 1756, though in the event her father-in-law, George II, lived until 1760." - (en.wikipedia.org 05.11.2019)
