Jaume Ramón Mercader del Río (7 February 1913 – 18 October 1978), more commonly known as Ramón Mercader, was a Spanish communist and NKVD agent who assassinated Leon Trotsky, the renowned Russian Bolshevik revolutionary, in Mexico City in August 1940 with an ice axe.
He served 20 years in a Mexican prison for the murder.
Joseph Stalin presented him with an Order of Lenin in absentia.
Mercader was awarded the title of Hero of the Soviet Union after his release in 1961.
He divided his time between Cuba and the Soviet Union.