Nearby Florence (about 20 min from the city center) there is a very famous medieval castles where many couples decide to get married there. Italians usually go there for receptions, but foreigners can use also the amazing garden as a perfect set for a symbolic wedding.
This is the fairy tale casle and I just received an email from the manager that on week days the castle has an amazing rental cost!
Believe the cost is really amazing compared to the cost during week end!
So if you would like to get marrie din Tuscany, few km from Florence and have a summer wedding at resonable price, contact me email@example.com. The manager also told me that including in the cost they also offer some extra things which usually they rent apart!