Little is known for certain about the life of B. Traven ; a prolific writer, he is best known for his beloved adventure novel The Treasure of the Sierra Madre , and the Jungle Novels, a series set during and after the outbreak of the Mexican Revolution, with proletarian, anarchist themes. During his lifetime, he was variously (and incorrectly) identified as the son of Kaiser Wilhelm I, or a North German brickmaker, but it is now believed that he was born Moritz Rathenau in Germany in 1882, the illegitimate son of Emil Rathenau, the founder of AEG and Helen Mareck, an Irish actress. He lived for some time as Ret Marut, a merchant seaman, actor, journalist and politician, and left Germany in 1923 after having been sentenced to death for his part in the Bavarian Revolution. He arrived in Mexico in 1924, where he dedicated himself to writing full time. Traven married Rosa Elena Luján in 1957 and died in Mexico City in 1969.