Crests: 1st: A Ram's Head cabossed Argent, attired Sable (Lambton); 2nd: a Woman's Head affrontée, couped at the breast, proper, hair flowing Or, wreathed about the temples with a Garland of Cinquefoils Gules, pierced Or (Hedworth); 3rd: out of a Ducal Coronet Or, an Antelope's Head, isuant, winged Argent, attired and barbed Or (D'Arcy).

Supporters: Dexter: a Lion Gules, ducally gorged Or, supporting a Flagstaff Or, therefrom flowing a Banner Azure, charged with a Cross-Potence; Sinister: a Lion Azure, ducally gorged Or, supporting a Flagstaff Or, therefrom flowing a Banner Azure, charged with a Lion passant guardant Or.

It was created in 1833 for the Whig politician and colonial official John Lambton, 1st Baron Durham.

He disclaimed his peerage titles shortly after succeeding his father in 1970, but improperly continued to style himself Viscount Lambton.

George Lambton (1860–1945), fifth son of the second Earl, was a thoroughbred racehorse trainer who trained two Epsom Derby winners.

[3] The first earl was the inventor of Dominion Status throughout the British Empire, leading to the creation of the Commonwealth of Nations.

Heritage of World Civilizations Eighth Edition p762 Craig, Albert M.; Grahm, William A.; Kagan, Donald; Ozment, Steven M.; Turner, Frank M. 2009