Thadiq
Thadiq is the chief settlement of the Mahmal district in Najd, set beside Wadi Ubaythiran as it descends from the Tuwayq heights. Its old town, known for its wall and the quarter of al-Uqdah, stood among the settlements and palm gardens of the valley. Najdi chronicles record that the Al Awsajah settled and planted Thadiq in 1079 AH, or 1668–69. Like other Najdi towns, Thadiq was drawn into the campaigns of the rising Saudi power based at Diriyah during the eighteenth century.