The term 'Thermopylae Victor' refers to the victory of the Greeks over the Persians at the Battle of Thermopylae in 480 BC. The leader of the Persian forces was King Xerxes, who had six letters in his name. This battle is considered one of the most famous last stands in history, as the vastly outnumbered Greek forces were able to hold off the Persian army for several days before finally being defeated.