XEE4415003 The Crusaders demanded the installation of Alexis as Co-Emperor of Byzantium during the 4th Crusade in 1203. Advertising card for Liebig products that are part of a series on the history of the male costume. Chromolithography of the 19th century. by French School, (19th century); Private Collection; (add.info.: The Crusaders demanded the installation of Alexis as Co-Emperor of Byzantium during the 4th Crusade in 1203. Advertising card for Liebig products that are part of a series on the history of the male costume. Chromolithography of the 19th century.); Stefano Bianchetti; French, out of copyright.