Calgacus

or Ga'lgacus, a British chief who distinguished himself among his countrymen in the war with Agricola. Tacitus (Agr. 29, &c.) gives a noble specimen of his love of liberty in the speech he puts into his mouth. [L.S]

and Galgăcus. A British chieftain who fought against the Romans at the time when Agricola was in command in Britain. A spirited oration is put into his mouth by Tacitus (Agric. 29 foll.).