Saw Yan Naung of Prome

Saw Yan Naung (1323/24–1377/78) held Prome, on the Irrawaddy, for over three decades. A grandson of King Kyawswa of Pagan and son of Governor Min Shin Saw of Thayet, he was carried off to Launggyet with his family by Arakanese raiders in 1334 and held until his release around 1344.

Kyawswa I of Pinya then made him governor of Prome. As Pinya's authority collapsed in the late 1350s he ruled like a sovereign, though he never declared independence as Toungoo did. In 1367–1368 he joined his brother Swa Saw Ke, new king of Ava.

In 1375 Swa enlisted him against Pyanchi I, viceroy of Toungoo, allied with Hanthawaddy. He proposed a marriage between his daughter and Pyanchi's son, to be held at Prome; Pyanchi came with a small force and was ambushed and killed. Swa made his brother viceroy, and he died in 1377 or 1378.