How common were marriages between nobles and lowborns in the Middle Ages?

by NorthWestSP

I'm sorry if this has already been asked, I couldn't find anything like it in the FAQ.

Roike

I think if you want some traction on this, you'd probably be best served to narrow down the location and date of your inquiry. That's like a thousand years of time period there. Also, the answer'd probably vary depending on what area of the world you were interested in.

(I often see the cool flaired up people ask for these types of clarifications!)