The Moamoria rebellion (1769–1805) was the 18th century uprising in Ahom kingdom of present-day Assam that began as power struggle between the Moamorias (Mataks), the adherents of the Moamara Sattra, and the Ahom kings. This uprising spread widely to other sections of Ahom kingdom including disgruntled elements of the Ahom aristocracy leading to two periods in which the Ahom king lost control of the capital. Retaking the capital was accompanied by a massacre of subjects, leading to a steep depopulation of large tracts. The Ahom king failed to retake the entire kingdom; a portion in the north-east, Bengmara, became known as Matak Rajya ruled by a newly created office called Borsenapati, became a tribute-paying but virtually independent territory.