The reach of the Burmese sovereign waxed and waned with the ability of each Burmese monarch. Shan states became briefly independent following the collapse of the first Toungoo dynasty, in 1599. The Restored Toungoo dynasty under King Nyaungyan and King Anaukpetlun recovered the Shan states, including the two strongest—Monhyin and Mogaung by 1605 and Lan Na by 1615. In the early-18th century, the rule of Burmese monarchs declined rapidly and by the 1730s, the northernmost Shan states, many of which had paid dual tribute to China and Burma, had been annexed by the Qing Dynasty of China. The annexed border states ranged from Mogaung and Bhamo in present-day Kachin State to Hsenwi and Kengtung in present-day Shan State to Sipsongpanna (Kyaingyun) in present-day Xishuangbanna Dai Autonomous Prefecture, Yunnan.