Earl's Third Penny
Defined in 1 dictionary — Bouvier (1914)
Bouvier's Law Dictionary and Concise Encyclopedia
John Bouvier; revised by Francis Rawle · 1914
In the county court and in every hundred court the king was entitled to but two-thirds of the proceeds of justice and the earl got the other third, except perhaps in some exceptional cases. Maitl., Domesday and Beyond 95.