In Gladiator, Maximus kills Commodus in the colosseum, leaving Lucilla ostensibly in control of the Roman Empire.
The scheme failed and Lucilla was exiled and then executed.
Suffice to say, she was not thrilled when her less talented, and altogether unstable, younger brother took the throne.
The historical Lucilla was a pretty formidable lady.
Plus: Meet Tai Berdinner-Blades, the Kiwi actress bringing her to life on Netflix.