The Toungoo dynasty (Burmese: တောင်ငူမင်းဆက်, ; also spelt Taungoo dynasty, and also known as the Nyaungyan dynasty after 1599, was the ruling dynasty of Burma from the mid-16th century to 1752. It is also called the Second Burmese Empire in Burmese historiography. At its peak, Toungoo "exercised suzerainty from present-day Assam, Manipur to the Cambodian marches and from the borders of Arakan to Yunnan" and was "probably the largest empire in the history of Southeast Asia." The dynasty ruled in two periods: the First Toungoo Empire and the Nyaungyan Restoration.