Qal'at Murair (also Qal'at Im Murair, Arabic: قلعة مرير) is a ruined and deserted fortified castle located 2.4 kilometres (1.5 mi) from the south eastern part of the town of Zubarah.
[1] Qal'at Murair was built by the Al Bin Ali of the Utub tribe after their arrival to Zubarah from Kuwait.
[2] It was built in attempt to thwart off challenges by the Al Musallam branch of the Bani Khalid, who ruled over most of Qatar.
[3] They initiated the 1783 Utub invasion of Bahrain from the fort.
[2] It was a fortified and was built to oversee and protect the town from any invaders.