The name doesn't sound unusual at all to me now, but when I first started researching I only knew up to my great-grandfather so I was just blindly looking at whatever Knightons came up in searches.
I had a long list of Knightons in the Birth Indexes in the area dating back to 1837 and I was just browsing through them, with no clue who I was related to or not.
I came across "Jabez Knighton". I thought, what an odd name! Turns out he was my 3x great grandfather.
I quite like the name now, I'm potentially considering bringing it back into the family should I ever have kids.