Boudicca was the queen of the Iceni Tribe who led a revolt against Rome. Accounts show that she first struck the city of Camulodunum within her attack where she massacred and began destroying the settlement. She continued her revolt where many Roman forces tried to stop her but proved ineffective. By the end of this revolt, Boudicca massacred all those who had not yet fleed the scene, successfully defeated the Roman Ninth Legion, as well as destroyed much of Londonimium. 

Mark, Joshua J. “Boudicca.” Ancient History Encyclopedia, Ancient History Encyclopedia, 26 Aug. 2020, www.ancient.eu/Boudicca/.