Australia, King Charles
The boy, 12, presented flowers to the Queen alongside his sister who saved his life through a bone marrow transplant.
Day, from Australia, is adamant he is related to the Royal Family and believes there's only 'one way' to get to the truth.
Prince Harry and Meghan Markle toured Australia just a year before they left the Royal Family, with a new report revealing it ...
Ahead of King Charles and Queen Camilla’s visit kicking off Oct. 18, here are some of the royal family's most memorable trips ...