 Saint-Denis was the work of the Abbot Suger, a close adviser of Kings Louis VI and Louis VII.Suger reconstructed portions of the old Romanesque church with rib vault to make the walls thinner, and to bring in greater light through the new stained glass windows he put into place.The first cathedral in France built entirely in the new style was Sens Cathedral, begun between 1135 and 1140 and consecrated in 1160.