Trio of ALSs from three children of King George III and Charlotte of Mecklenburg-Strelitz, including: a three-page letter from Princess Augusta Sophia, signed “Augusta,” handwritten on 7.5 x 9 black-bordered stationery, dated January 12, 1827; a one-page letter from Prince Adolphus, Duke of Cambridge, signed “Adolphus,” penned on a 4.25 x 6.5 sheet dated November 8, 1848; and a one-page letter from Prince Augustus Frederick, Duke of Sussex, signed “Augustus Frederick,” written on a 4.25 x 7 sheet dated December 29, 1830. In overall very good to fine condition.