I don’t doubt they exist, but the only two examples I ever hear are the GoT one you mentioned and High/Low Gothic in WH40k. But I see that factoid about High/L

I don’t doubt they exist, but the only two examples I ever hear are the GoT one you mentioned and High/Low Gothic in WH40k. But I see that factoid about High/Low German repeated multiple times a year. It was a common entry on ‘fantasy cliche’ lists even in the dial-up era of the Internet.