Livia 2

While it says in the description that Livia is merely diminutive form of Olivia, it actually precedes the name by at least 1500 years. One famous bearer was the infamous Livia, wife of Augustus the first Emperor of Rome. This woman was so frighteningly kick ass that I considered changing my name to Livia (also for originality's sake) from Olivia for a few years. In I, Claudius she is portrayed as the ultimate killing mastermind, being involved in nearly every death in the Julio-Claudian family (cough everyone in the family) but it is for a desire for the good of the Empire, which, admittedly, blossoms under her strict imperial control.