Byzantine frontier, the hero battles with and kills the female warrior Maximo, descended from some Amazons and taken by Alexander from the Brahmans. John Tzetzes lists in Posthomerica twenty Amazons, who fell at Troy. This list is unique in its attestation for all the names but Antianeira, Andromache and Hippothoe. Other than these three, the remaining 17 Amazons were named as Toxophone, Toxoanassa, Gortyessa, Iodoce, Pharetre, Andro, Ioxeia, Oistrophe, Androdaixa, Aspidocharme, Enchesimargos, Cnemis, Thorece, Chalcaor, Eurylophe, Hecate, and Anchimache. Famous medieval traveller John Mandeville mentions them in his book: Medieval and Renaissance authors credit the Amazons with the invention of the battle-axe. This is probably related to the sagaris, an axe-like weapon associated with both Amazons and Scythian tribes by Greek authors (see also Thracian tomb of Aleksandrovo kurgan). Paulus Hector Mair expresses astonishment that such a "manly weapon" should have been invented by a "tribe of women", but he accepts the attribution out of respect for his authority, Johannes Aventinus. Ariosto's Orlando Furioso contains a country of warrior women, ruled by Queen Orontea; the epic describes an origin much like that in Greek myth, in that the women, abandoned by a band of warriors and unfaithful lovers, rallied together to form a nation from which men were severely reduced, to prevent them from regaining power. The Amazons and Queen Hippolyta are also referenced in Geoffrey Chaucer's Canterbury Tales in "The Knight's Tale". Amazons continued to be subject of scholarly debate during the European Renaissance, and with the onset of the Age of Exploration, encounters were reported from ever more distant lands. In 1542, Francisco de Orellana reached the Amazon River, naming it after the , a tribe of warlike women he claimed to have encountered and fought on the Nhamundá River, a tributary of the Amazon. Afterwards the whole basin and region of the Amazon (Amazônia in Portuguese, Amazonía in Spanish) were named after the river. Amazons also figure in the accounts of both Christopher Columbus and Walter Raleigh. Amazons in art Beginning around 550 BC. depictions of Amazons as daring fighters and equestrian warriors appeared on vases. After the Battle of Marathon in 490 BC the Amazon battle - Amazonomachy became popular motifs on pottery. By the sixth century BC, public and privately displayed artwork used the Amazon imagery for pediment reliefs, sarcophagi, mosaics, pottery, jewelry and even monumental sculptures, that adorned important buildings like the Parthenon in