the birth of gothic art

This art style, which belongs to the 12th century, was mentioned in the 17th century as Gothic art. The Goths lived between the 4th and 6th centuries, and during this time they had tried to demolish Rome, the center of classical civilization. Therefore, they were thought to be insensitive to beauty.
In other words, it was mentioned as Gothic by the 17th century bourgeoisie to denounce the art style. This art syle hasn't related with the Goths. Gothic Art was born in France, started in architecture and continued with architectural plastic. In fact, the church of St Denis, which was built in the 8th century, has undergone a structural change due to religious reasons. As a result of this change, the first lines of Gothic art were born.

http://mickou.info/131313-st-denis-cathedral.html

characteristic of high Gothic architecture; flying buttress, pointed (Gothic) arch, Stained-glass window, Vaulted Ceiling and Rosace.

https://uk.tourisme93.com/basilica/saint-denis-cathedral-restoration.html