The Hounds of Chaos
Oh she was definitely born with it.
Horn of Kings
Maybelline has has a rough and varied life. Kidnapped by brigands from a dwarf caravan and made to entertain them with jokes and songs (they thought her beard was funny), she spent much of her early life building resentment and swallowing her rage. When she was abandoned by the group as they passed by a small settlement, she wheedled her way into the blacksmith trade in order to have an excuse to hit things all day.
She was conceived on a horse. Third date, romantic overlook, on his sweet ride, you know the story.