Controversy has always surrounded Moctezuma II, one of the most fascinating figures in the history of Mexico. As the Aztec emperor who welcomed Spanish Conquistador Hernan Cortés, who eventually conquered the Aztec empire, Moctezuma II is considered a traitor by some Mexicans, and a great leader by others. It has long been alleged that amongst the silver and gold Cortés took back to Spain to lay before his king was the headdress of the Aztec emperor, now displayed in all its finery at the Weltmuseum in Vienna. The authenticity of…