King George III suffered from what we now know as bipolar disorder with acute mania. In 1788 he experienced one of his most severe episodes of mania which led to him taking a step back from his responsibility as king. He left many decisions up to his prime minister, William Pitt the Younger. When King George III was experiencing mania, one sign was often a change in his speech and writing. It has been found that he would write much longer, more creative sentences, and that his vocabulary was all-together more colorful. He was also witnessed to talk a great deal until foam would come from his mouth. When he had to withdraw from the public eye, it left people in a bit of a panic, as people did not know who would take over for him, due to his poor relationship with his son. When he withdrew for recovery he would go to Kew.

“What Was the Truth about the Madness of George III?” BBC News, BBC, 15 Apr. 2013, https://www.bbc.com/news/magazine-22122407.