Sidney Reilly

Sidney Reilly was a Russian-born British intelligence officer who worked for MI6 during the early 20th century. He was born in 1874 in Simbirsk, Russia, and immigrated to the UK as a child. He worked as a spy and a double agent, using his skills to gather intelligence and influence events in Russia and Europe. He was known as the 'Ace of Spies' and was one of the most famous spies of his time. He died in 1925 in Moscow, Russia.