Esteban Volkov Bronstein, grandson and guardian of the memory of Soviet revolutionary Leon Trotsky, died in Mexico on June 17, the Spanish daily El Pais reported on June 18. He was 97. Born in Yalta, Ukraine, in 1926, Volkov came to Mexico at the age of 13 after spending most of his childhood moving from one country to another. Volkov was the last surviving witness to the 1940 assassination of Trotsky in his house in Mexico by Stalinist agents. He later turned the family home into a museum to honor the memory of his grandfather.