High Quality Content by WIKIPEDIA articles! The Ahom Dynasty (1228–1826) ruled the Ahom Kingdom in present-day Assam for nearly 600 years. The dynasty was established by Sukaphaa, a Shan prince of Mong Mao who came to Assam after crossing the Patkai mountains. The rule of this dynasty ended with the Burmese invasion of Assam and the subsequent annexation by the British East India Company following the Treaty of Yandabo in 1826.