Galgacus, the name Tacitus gives to the Caledonian chief who offered a desperate resistance to the northward march of Agricola (86 A.D.), and was at length disastrously defeated in the great battle of the Grampians.
Galgacus
Chambers's Encyclopaedia, Volume 5: Friday to Humanitarians, p. 58
Source scan(s): p. 0067