In my current (Vanguard) Joeverse, Baroness was always a US spy--placed into the Cobra organization early on. She went in so deep and got so much into the role that over time she effectively lost track of her real identity, until shortly before the Cobra Civil War. At that point she was able to convince Destro to turn against Serpentor and Cobra Commander. After the war (which ended with Cobra being utterly wiped out) she and Destro retreated to a quiet life in Scotland. The Baroness is now retired but maintains her connections, and only a handful of people (including Gen. Hawk and Joe Colton) know her real identity or her whole history.
Can't help it...I've always had a soft spot for her, couldn't make her a bad girl.

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