 The flourishing of religious architecture in Paris was largely the work of Suger, the abbot of Saint-Denis from 1122 to 1151 and advisor to Kings Louis VI and Louis VII.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.