 The current chapel was probably built to replace the one destroyed by an earthquake in 1170 . Only the east end of the original chapel , which housed the apse , and a small part of the south wall survive from the original chapel . The later chapel had a barrel vault and an uncomplicated apse ; its design would have been considered outmoded by contemporary standards in France , but bears similarities to that built around 1186 at Margat . It was divided into three roughly equal bays . A cornice runs round the chapel at the point where the vault ends and the wall begins . Oriented roughly east to west , it was 21 @.@ 5 metres ( 71 ft ) long and 8 @.@ 5 metres ( 28 ft ) wide with the main entrance from the west and a second smaller one in the north wall . When the castle was remodelled in the early 13th century , the entrance was moved to the south wall . The chapel was lit by windows above the cornice , one at the west end , one on either side of the east bay , and one on the south side of the central bay , and the apse at the east end had a large window . In 1935 a second chapel was discovered outside the castle 's main entrance , however it no longer survives . 
 The current chapel was probably built to replace the one destroyed by an earthquake in 1170 . Only the east end of the original chapel , which housed the apse , and a small part of the south wall survive from the original chapel . The later chapel had a barrel vault and an uncomplicated apse ; its design would <a href='been_done' title='1'><mark>have</mark></a> been considered outmoded by contemporary standards in France , but <a href='uninflect' title='2'><mark>bears</mark></a> similarities to that built around 1186 at Margat . It was divided into three roughly equal bays . A cornice <a href='uninflect' title='3'><mark>runs</mark></a> round the chapel at the point where the vault <a href='uninflect' title='4'><mark>ends</mark></a> and the wall <a href='uninflect' title='5'><mark>begins</mark></a> . Oriented roughly east to west , it was 21 @.@ 5 metres ( 71 ft ) long and 8 @.@ 5 metres ( 28 ft ) wide with the main entrance from the west and a second smaller one in the north wall . When the castle was remodelled in the early 13th century , the entrance was moved to the south wall . The chapel was lit by windows above the cornice , one at the west end , one on either side of the east bay , and one on the south side of the central bay , and the apse at the east end had a large window . In 1935 a second chapel was discovered outside the castle <a href='null_genetive' title='6'><mark>'s</mark></a>main entrance , however it no longer <a href='uninflect' title='7'><mark>survives</mark></a> . 
Da current chapel was probly built to replace the one destroyed by an earthquake in 1170 . Only the east end of tdaoriginal chapel , which housed the apse , and a small part of the south wall survive from the original chapel . Thdaater chapel had a barrel vault and an uncomplicated apse ; its design would done been considered outmoded by contemporary standards in France , but bear similarities to dat built around 1186 at Margat . It was divided into three roughly equal bays . A cornice run round the chapel at the point where the vault end and the wall begin . Oriented roughly east to west , it was 21 @.@ 5 metres ( 71 ft ) long and 8 @.@ 5 metres ( 28 ft ) wide with the main entrance from the west and a second smaller one in thedarth wall . When the castle was remodelled in the early 13th century , the darance was moved to the sdah wall . The chapel was lit by windows above the codace , one at the wesdand , one on either side of the eastday , and one on the south side of the central bay , and the apse dathe east edahad a bigass window . In 1935 a second chapel was discovered outside the castle dain entrance , however it no longer survive .