Thado Dhamma Yaza III (Burmese: သတိုးဓမ္မရာဇာ, pronounced [ðədó dəma̰ jàzà]; also known as Mingyi Hnaung (မင်းကြီးနှောင်း, [mɪ́ɴdʑí n̥áʊɴ]); c. 1571–1597) was viceroy of Prome (Pyay) from 1589 to 1595, and self-styled king of Prome from 1595 to 1597. Hnaung was initially a loyal vassal of his father King Nanda until 1594 when he openly clashed with his brother Crown Prince Minye Kyawswa. Hnaung revolted in 1595 during the Siamese siege of Pegu (Bago). His revolt started a string of other revolts by the major vassal states of the Toungoo Empire in the next two years. His attempts to take over territories beyond Prome's traditional vassals in the present-day Magwe Region were unsuccessful. The self-proclaimed king was assassinated by , one of his trusted advisers, on the eve of his planned i