On 21 August 1814 , after the defeat of Napoleon , the monks finally returned to Westmalle .
However , on 28 July 1811 a decree by Napoleon I of France closed all Trappist monasteries in France .
On 21 August 1814 , after the defeat of Napoleon I , the monks finally returned to Westmalle .
However , on 28 July 1811 a decree by Napoleon I of France closed all Trappist monasteries in France .