He rebuilt the façade of the old Carolingian Basilica of Saint Denis, dividing it into three horizontal levels and three vertical sections to symbolize the Holy Trinity. Then, from 1140 to 1144, he rebuilt the rear of the church with a majestic and dramatic wall of stained glass windows that flooded the church with light. This style, which later was named Gothic, was copied by other Paris churches: the Priory of Saint-Martin-des-Champs, Saint-Pierre de Montmartre, and Saint-Germain-des-Prés, and quickly spread to England and Germany.[39][40]