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Around the year 900 AD, Qo'noS was ruled by Molor, a tyrannical ruler who was generally unpopular among the people. Kahless the Unforgettable emerged as a champion of the people, and slew Molor in single combat using the first bat'leth, the Sword of Kahless, in the Battle of Qam-Chee. Here, Kahless and the Lady Lukara fought a pitched battle in the city's Great Hall against the soldiers of Molor. While the rest of the city's garrison fled before the five hundred soldiers, Kahless and Lukara stood their ground and defeated the forces. Shortly after their victory, the two began what would become known as the greatest romance in Klingon history. Kahless ruled together with his new wife as Emperor of Qo'noS, building his new empire and also defeating the Fek'Ihri, despite the fact that he was not of noble birth. Kahless proved to be not only a powerful warrior, but a wise and just ruler, establishing a code of honor that was to become the template for Klingon society for centuries to come. Moreover, the defeat of Molor continues to be celebrated in the Empire in the Kot'baval Festival.