Florence - Casanova
We will get this quest from a man  in southern part of the town. 
We need to deliver two packages in four minutes. In both cases, women will be guarded by some guards.  You need to sneak - the first lady is waiting in the yard and the second one on the balcony. 
Forli - The Messenger's Burden
You will get the courier mission in Forli in the city center.  Now you have to a small farm outside. Run across rooftops, and jump on one of the towers - from here jump down to the ground. 
Here you need to talk to a man (look at the timer).  Now you will have to choose - face the local people or flee. 
Tuscany - Wedding Bells Are Ringing
We must provide a letter before the wedding ceremony will begin. This is not a difficult task - simply go  to the place marked on the map and speak with the man. 
Tuscany - Speedy Delivery
This time you must take 3 letters and transport them to the city.  Run through the southern gate  and use your horse - go southeast.
Go to another place (in the east).  You should have something about one minute now - reach the last target. 
Venice - The Perfect Marriage
The man from the northern part of the city needs help with some thief.  Take this job and run to your target - climb on the roof and chase your opponent. 
In fact, you can catch him after your first jump.  Search his body and find a letter.  Return it to the owner.