Answer:
Romanesque architecture is an architectural style characterized by its semi-circular arches, prevalent in ancient Europe
It pertains to the type of art in Europe from the 10th century until the rise of Gothic art in the 13th century.
The Romanesque style was the initial design utilized by the Roman Catholics in Europe. Their constructions were of superior quality, with robust walls, towering spires, and balanced layouts, among other attributes.
The Crusades significantly influenced migration, which triggered a surge in trade, leading to the fortification of buildings; they also supplied arms. The ongoing migration contributed to a homogenization of building designs, resulting in a distinct Romanesque architectural style.
One of the enduring structures that featured fortifications built during the Crusades is the city of Carcassonne.
