Clan Grierson is a Scottish clan associated with the region of Dumfries and Galloway. The Griersons held lands in the area, including the estate of Lag. The family’s history can be traced back to the 13th century. Notable figures from Clan Grierson include individuals who have excelled in various fields, such as law, politics, and arts. One notable figure is Sir Robert Grierson of Lag, a lawyer and politician who played a significant role in the legal and political affairs of Scotland.