(The). Boadicea, Queen of the Iceni.
When the British warrior queen, Bleeding from the Roman rods, Sought, with an indignant mien, Counsel of her country's gods ...
The Iceni were the faithful allies of Rome; but, on the death of Prasutagus, king of that tribe, the Roman procurator took possession of the kingdom of Prasutagus; and when the widow Boadicea complained thereof, the procurator had her beaten with rods like a slave.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894