One of the most prestigious historic houses in the area was damaged by members of the Bullingdon Club in an alcohol-fuelled night.
Hartwell House hosted a party for the club, whose members were thought to be celebrating the end of their studies at Oxford University.
But the night began to get out of hand when a glass was thrown through a window.
Police were then called after one of the members tried to damage the pipes in the toilet of the hotel and damage to a Mazda MX5 car is now being investigated.
Hartwell House managing director Ian Scott played down the incident as a tradition which got out of hand.
During a toast at dinner it is traditional for the speaker to throw a glass over his shoulder, only this time it went through a window.
The night was booked under a fake name due to the reputation of the group.
Mr Scott emphasised no lasting damage was done to the 17th century building.
The club has a reputation for causing drunken damage and have been previously blamed for smashing 468 windows of the Peckwater Quad of Christ Church in Oxford.
A number of high powered politicians have been members, including Prime Minister David Cameron and Chancellor of the Exchequer George Osborne.