One is Britain's warrior queen - a ruthless freedom fighter who torched cities and slaughtered thousands while trying to vanquish the ruling Romans.
The other is the bloodthirsty 'Mad Queen' - the Mother of Dragons and Breaker of Chains who roasts her enemies and turns strongholds into ashes in her brutal quest to sit on the Iron Throne.
Parallels have been drawn between the folk hero Boudica and Daenerys Targaryen, the fictional ruler in HBO's Game of Thrones, following the show's latest plot twist.
Boudica's body count included thousands of civilians - including women whose breasts were mutilated - as she led the rebel British Celtic Iceni tribe in an insurgency against the Romans around AD 60.
Her forces burnt the cities they conquered - including Camulodunum (Colchester), Londinium (London) and Verulamium (St Albans) - until they were finally defeated in battle by the Roman army.
It is thought that Boudica, or Boudicca, took her own life by poisoning herself to avoid capture as the uprising failed.
As for Daenerys, Game of Thrones fans will soon find out what fate awaits her in the final episode after a storyline that has left viewers shocked and angry.
The Mother of Dragons commanded a small army that grew as she conquered stronghold after stronghold and freed slaves on her match to King's Landing.
In the penultimate episode, Daenerys - portrayed by actress Emilia Clarke - uses her dragon Drogon to burn King's Landing, incinerating civilians and soldiers who had surrendered.
Her forces, including the Dothraki and Unsullied, cheer her as pockets of fire send plumes of black smoke over the seaside city.
Daenerys is a work of fiction thought up by the author George R R Martin. The latter stages of her storyline have been masterminded by the HBO programme's writers.
The Celtic rebellion did happen, but there is no direct evidence that the enigmatic Boudica existed and her real name is not known, History Extra wrote.
The pagan queen's story is based on the writings of two Roman figures - Tacitus and Cassius Dio - published decades after the supposed battles.
The name Boudica derives from bouda, the ancient British word for victory.
Yet the queen of the Iceni people of Eastern England - modern-day Norfolk, north Suffolk and north-east Cambridgeshire - remains an enduring figure.
She was married to Prasutagus, the ruler of the Iceni people when the Romans invaded and conquered southern England.
He was allowed to continue his rule while the Romans occupied Britain, but after his death the Romans took over control of the area and seized ancestral lands.
It is said that the Romans stripped and flogged Boudica and raped her daughters.
After plotting their revenge, the Iceni launched their rebellion around 60 or 61 AD.
They were joined by other tribes as Roman general Gaius Suetonius Paulinus - the governor of Britain - led a campaign in North Wales.
Boudica's forces butchered or burnt alive civilians as they destroyed the capital Camulodunum.
Moving west, in the siege of Londinium her soldiers hacked off women's breasts and sewed them into their mouths, and their bodies were then skewered on wooden poles.
Before the city was reduced to ashes, civilians were slaughtered en masse and religious sacrifices were carried out.
The tribes then moved on to Verulamium, razing the city as Paulinus and his troops returned to the heart of Roman Britain to confront Boudica.
It is said that Boudica's armies killed roughly 70,000 Roman citizens and allies before the final battle at a site still not known to this day.
Boudica's forces were largely outnumbered and were slaughtered after being surrounded by the Romans.
The warrior queen's death is shrouded in mystery.
The Roman writer Tacitus wrote that she killed herself with poison, while Cassius Dio claimed she died after falling ill.