If you don't mind I'll show you some tricks concerning words "который, которая, которое, которые" in long sentences.
The first thing you have to do is to understand which word in the main sentence is replaced by "который". So you:
1. Determine number and gender of "которого" (singular, masculine).
2. Find all singular and masculine nouns in the main sentence (Кремля).
3. If there are several words that match, determine also the case of "который" word.