Durham | County Durham | Orange County | County Cork | St. Louis County, Minnesota | County Galway | Durham University | County Mayo | county | Montgomery County | Los Angeles County Museum of Art | Lancashire County Cricket Club | Westchester County, New York | Nassau County, New York | County Antrim | Rockland County, New York | County Down | Washington County | Hillsborough County | Derby County F.C. | County Meath | County Donegal | Erie County, New York | County Tyrone | County Tipperary | County Louth | County Armagh | Wayne County, Michigan | Somerset County Cricket Club | Los Angeles County |
Aside from the Earldoms, the Earl holds the subsidiary titles: Viscount Lyon (created 1677), Lord Glamis, Tannadyce, Sidlaw and Strathdichtie (1677), Lord Lyon and Glamis (1606), Lord Glamis (1445) and Baron Bowes (1887) of Streatlam Castle, in the County of Durham, and of Lunedale, in the County of York.
In July 1970 he was made a life peer as Baron Slater, of Ferryhill in the County of Durham.