Here is a nice article about a 12 year old chess prodigy from the UK:

http://www.surreyad.co.uk/news/2013/2013980/young_expert_has_all_the_moves

Daniel learned chess when he was only 4 years old! Then he joined the school chess club at age 7. He has already played in multiple international events and has already won many titles and awards. Could he be the next great player to make it to the world class level and compete for the World Championship?

Wow only 12