In 1669, two priests decided to build a chapel in a 500 years old oak tree made hollow by a lightning bolt. The priests built a small altar to the Virgin Mary. Later on, a second chapel and a staircase were added.
Chapel-Oak, Allouville-Bellefosse
![](https://opus.ac/wp-content/uploads/chapel-oak-allouville-bellefosse/1078f96f36bce537219703482c0b87f2.jpg)
In 1669, two priests decided to build a chapel in a 500 years old oak tree made hollow by a lightning bolt. The priests built a small altar to the Virgin Mary. Later on, a second chapel and a staircase were added.