Excerpts from Books and Wikipedia
". . . the style spread throughout Europe, becoming the blueprint for the design of many churches and cathedrals." [Furtado: 1001 Days] "Wren claimed the inventors of the Gothic had seen the Saracen architecture during the Crusades, also called the Religious war or Holy War, organised by the Normans in the year 1095:
The Holy War gave the Christians, who had been there, an Idea of the Saracen Works, which were afterwards by them imitated in the West; and they refined upon it every day, as they proceeded in building Churches. —?Christopher Wren, Parentalia" [Wikipedia: Gothic architecture]