Sophonisba

The original Sophonisba was a Carthaginian noblewoman who was alive at the time of the Second Punic War, who became a legend for drinking lethal poison rather than be humiliated by Carthage's Roman conquerors. She's been the subject of countless literary works throughout history.

Her name has been used a few times in the past couple millennia, most notably by early 20th century American activist Sophonisba Breckenridge. It might be worth considering as a Sophia/Sophie alternative -- if you're a Classics scholar.

Pronounced suh-FAH-nis-buh.