Just an aside on Katherine with a “K”.
In most European countries, Katherine is spelled with a “K”.
That includes Ireland, Germany, Russia, and almost everywhere except England.
My German great-grandma was “Katherina”. My Irish great-grandma was “Katherine”.
Later on, popular versions of the name became Kathleen, Kaitlin, Kathryn, Katya, Katrina, etc.
All of these latter versions are in use among younger generations of my family.
In the Protestant parts of Germany the name Katherina is from the famous “Katherina von Bora,” Dr. Martin Luther’s wife...who by all accounts was a force to be reckoned with...