"I'm going to my friend's wedding in Portugal."
Translation:Je vais au mariage de mon ami au Portugal.
Hi! I find it really hard to get when tu use à and en for places. In general, I use en when it comes to countries or cities that begin with vowel, and à for cities, so I never expected de au here. I've read about this subject many times but can't seem to get it, any tips or help in this regard? Thanks!