In the fictional BattleTech universe, New Avalon is the capital world of both the Federated Suns and, at other periods in BattleTech's history, the Federated Commonwealth. The world is also the hereditary landhold of the ruling House Davion. New Avalon is famous for its high agricultural output. The planet figures prominently in the early history of BattleTech with the New Avalon Grain Rebellion against the Terran Alliance. New Avalon was attacked by the Draconis Combine during the First Succession War, though they were defeated after the assassination of the Coordinator.