 In 1805 , the King began making plans for Charlotte 's education , and engaged a large staff of instructors for his only legitimate grandchild , with the Bishop of Exeter to instruct her in the faith that King George believed one day Charlotte , as queen , would defend . The King hoped that these teachers would " render her an honour and comfort to her relations , and a blessing to the dominions over which she may hereafter preside " . According to Holme , this instruction made little impression on Charlotte , who chose to learn only what she wanted to learn . Her piano teacher was composer Jane Mary Guest , and Charlotte became an accomplished pianist . 
