This small town of about 300 inhabitants owes its name to the mills that were installed on the edges of the Ouanne.
The 5th century to the Revolution, it was owned by the bishops of Auxerre.
In the 11th century, Hugues de Chalon divided his land Puisaye and Moulins up, a fief of the barony of Toucy and in fief, bishops.
Lords Toucy will, in turn, vassal lands Moulins.
Castellanies names appear in the chronicles, that from the 15th century ; but they are likely earlier :
Bridge, Bridge became Marquis, The Journière which will be transformed into The Jaunière The Aguenons and, without doubt, the Allins.
Over time, these three mansions, two became firm while Pont Marquis remained a castle.
Since the 16th century, the owners who have succeeded - whose Assigny (XVI -XVIII ) allied to Courtenay - have expanded and transformed the castle.
The church built on a hill Saint- Denis ( fifteenth and sixteenth centuries), dominates its high tower with elegant turret poyaudin this small village.
Over time, Moulins -sur Ouanne originally agricultural village, experiencing an economic diversification with the presence of companies and artisans.
