Hello, I just wondering if there is a way to spend money in this game?(except beggars and robin's throwing gold case ability) there are ambush missions to collect more golds, even if you could collect a lot of gold in story missions. so, I just want to know how can I use my money or what is the purpose of collecting money in this game?

ps: I've finished mission 3 - finding lady marian mission.

edit: I've finished game and I can tell money literally useless in this game. all you need 100k gold to pay ransom. It is like main objective and that's it. also you can buy blazons with money but it is not necessary.