Kékszilváni, which translates to blauer silvaner and is most likely the same variety indeed, can be tasted again from Hungarian vineyards. You guessed it right, the man who brought it back is József Szentesi.
I probably never tasted any wines made from Sardinia’s local grape variety, Monica. This one called Antigua and made by Santadi is quite pretty, I would be happy to drink this with or without food.