"The Patrician" Rises, Will Not Let Her Sidetrack Me

I've been getting a lot of ideas about a character for my series, who shall be codenamed "The Patrician." She is very elegant and refined, but also ruthless and arrogant. However, I want to do a twist on the stereotypical noblewoman. For example, she is highly trained in martial arts and can take as many punches as she gives. She also has the street smarts of a mob hitman (how she got these is my secret...for now). That being said, I don't want to do too much at once, so right now, she is just getting notes in a folder. However, sooner or later, she will make an appearance, and her impact will never be forgotten.