any other rose window. In 1225 Notre-Dame began modifications on its fourth story, instead of a triforium there were rose-shaped oculi which projected light onto the roof. The Collegiate Church of Mantes which was similar in design but smaller in scale also used oculi windows for lighting. Lincoln Cathedral (1185–1311 A.D.) Around the Gothic period the style of window, took a turn from the “wheel” like shape to a more complex flowering shape. Although, it cannot be known for sure when the rose window got its name, the naming of the window is thought to have occurred around the early 13th century. It is believed that the increase in popularity of the Virgin Mary is linked to the rose windows getting their name and gaining favor as well. A product already have been invented in the Middle Ages, stained glass only had appeared in the rose window at the Abbey Church of Saint-Denis. However, it started to become more popular around the earlier part of the 1200s, often the money for the glass, being donated by the wealthy. The glass had a tenancy to be dark and rich with color. The most common color combination was blue and red color patterns. Bar tracery style Bar tracery allowed for more glass to be used in the windows, creating a more visually stunning piece of artwork. In 1211, Reims Cathedral became known for being the first Gothic cathedral to use bar tracery with rose windows. Besides, showing up later in Rhenish art around 1200, the circular window was almost never used in Romanesque architecture and never considered to be important for lighting. Early Gothic style Example(s): Laon Cathedral (12th–13th centuries A.D.) 1180–90 marked the date for the two transept large rose windows which were made up of several juxtaposed multi-foils. These stood out in particular for their importance in interior lighting. Around 1205 the Laon Cathedral's choir was upgraded to also house a large rose window which was subdivided by mullions (slender dividing bars). Along with some other tall windows this was considered one of the greatest examples of Gothic art from the early 13th century. From the 12th until the early 13th century, The Last Judgement became a popular theme in rose windows. Rayonnant Gothic style This began the revolution of rose windows, in the sense that no Gothic church or cathedral, was complete without one. Rose Windows became a standard