Gothic architecture
Sens Cathedral (begun between 1135 and 1140) was the first Cathedral to be built in the new style (St. Denis was an abbey, not a Cathedral). Other versions of the new style soon appeared in Noyon Cathedral (begun 1150); Laon Cathedral (begun 1165); and the most famous of all, Notre-Dame de Paris, where construction had begun in 1160.
Gothic architecture
Italian Gothic architecture went its own particular way, departing from the French model. It was influenced by other styles, notably the Byzantine style introduced in Ravenna. Major examples include Milan Cathedral, the Orvieto Cathedral, and particularly Florence Cathedral, before the addition of the Duomo in the Renaissance.