Saint Sernin of Toulouse and Notre Dame of Paris When one thinks of St. Sernin and Notre Dame, one tends to think of two beautiful cathedrals, not to churches that portray two totally different styles of architecture. Those two styles are, of course, Romanesque in St. Sernin and the Gothic style of Notre Dame. Some characteristics that these two buildings share include quest for height, basic floor plan, and artistic flair. The period of Romanesque architecture, which lasted roughly from 1050 A.D. to 1150 A.D., concentrated mainly on achieving massive proportions, rounded