Prince Alfred of Great Britain
Prince Alfred of Great Britain (22 September 1780 – 20 August 1782) was the fourteenth child and ninth and youngest son of King George III and his queen consort, Charlotte of Mecklenburg-Strelitz. In 1782, Alfred, who had never enjoyed robust health, became unwell after his inoculation against smallpox.
Source: Wikipedia — Prince Alfred of Great Britain (CC BY-SA 4.0)