Gothic architecture evolved from Romanesque art in the 12th century and lasted into the 16th century in Germany. Key features included pointed arches, ribbed vaults, and flying buttresses which distributed weight. Gothic phases were Early, High, and Late. Important architects included Abbot Suger who rebuilt Saint-Denis and popularized Gothic style, and Robert de Luzarches and Jean d'Orbais who worked on Notre Dame in Amiens and Reims Cathedral. Prominent Gothic cathedrals included those in Florence, Paris, Cologne, Milan, Notre Dame de Paris, and Amiens.