
Russia’s imperial ambitions began with this fellow. Originally a child ruler – under a regent – he fared much better than some whose thrones came to them at a young age. (China’s Puyi, France’s Louis XVII, Scotland’s Mary I, and England’s Richard II, Henry VI, and Edward V spring to mind.)
Younger Kids
https://kids.britannica.com/kids/article/Peter-the-Great/353618
Older Kids
https://www.britannica.com/biography/Peter-the-Great
https://www.ancient-origins.net/history-famous-people/peter-great-0013597