"Krzysztof" is an obtuse Eastern European spelling of "Christoph," the most letters of "Christopher" that would fit onto a Scan-Tron form.
Remember those? The forms that told the school bureaucracy who you were? The forms that didn't have enough spaces for a fairly common name?
The first day of school, the teacher would invariably say "Christoph" when calling the roll, to which I said "Da."
So "Christoph" became my Fake Russian name, which I changed to "Krzysztof" because, let's face it, why not?
And I added "Darth" when I became a Sith Lord, but that's another show.