Shirdil Abu'l-Fawaris (known by his title of "Sharaf al-Dawla") quickly seized Oman from Samsam al-Dawla, and in 983, the Turkic troops of Samsam al-Dawla mutinied against him, and left Iraq for Fars, but most of them were persuaded by his relative Ziyar ibn Shahrakawayh to stay in Iraq.
In 1055, Tughrul conquered Baghdad, the seat of the caliphate, and ousted the last of the Buyid rulers [REF].