Div Sultan Rumlu (Persian: دیو سلطان روملو) was a Turkmen military commander and politician from the Rumlu clan,[1] one of the seven chief Qizilbash tribes which provided crack troops for Safavid guard.[2][3][4] In 1516-1527, he served as the governor (hakem) of the Erivan Province (also known as Chokhur-e Sa'd).[5] From 1524 to 1527, he was a powerful regent to ShahTahmasp I, who was then underage.[6] Div Sultan Rumlu had summer quarters at Lar Valley in the Alborz Mountains. He was killed in a power struggle in 1527.[7]