The Earls of Mar is a title in the Scottish peerage, first created in the 12th century. The title has a long history, with the Earls traditionally associated with the region of Mar in Aberdeenshire. The family played significant roles in Scottish history, particularly during the Wars of Scottish Independence. The title has been held by various notable figures, including John Erskine, who was a prominent supporter of the Scottish Reformation. The Earldom has gone through periods of abeyance and restoration, reflecting the complex nature of Scottish nobility and inheritance laws.