I didn't think Capitals could ever be razed?
I wasn't sure if barbs could take a capital, but I almost found out the other day. I only had the one city and started an early war. I didn't plan on making a settler, as my next city was going to be the one(s) I conquered. I had most of my units attacking Poland, who had decided to settle near my borders. Then I noticed the barbs attacking my capital. They nearly had it too but I think I bought an archer in time. Without reloading, I would not have been able to get my own units there in time to fight them off. I wasn't sure if it would have been game over for me or not. Maybe I should have waited to find out and then reloaded if they were actually able to take it. I guess I panicked for nothing then, haha. It turned out the purchased archer was able to pick them off before the city was down to 0 health.