I want to know the answer to the following question:
What event in the year 1090 could have had an effect on Medieval Europe's embracing of the pointed arch?
All the background I'm provided with is that "Certainly, in those parts of the Western Mediterranean subject to Islamic control or influence, rich regional variants arose, fusing Romanesque and later Gothic traditions with Islamic decorative forms, as seen, for example, in Monreale and Cefalù Cathedrals, the Alcázar of Seville, and Teruel Cathedral.". Is that enough to answer the question?
Answer: no