Good grid. Quite tricky.

Great explanations ty

I'd never heard of a flint corn and the Leipzig group was really niche
good grid

flintcorn?

flint corn is a really hard maize but this is also quite niche I think. Very hard grid, lots of place names really threw me!

budapest and leipzig schools are somewhat obscure, and frankfurter is much fairer than nurnberger

Thanks for the comments. I agree that some of the answers are fairly obscure (I only found out about Flint Corn when researching this). I wanted to get a good grid for possible red herrings without being too challenging. Not sure I quite got it but I am fairly happy with it.