Complex sentence: Aarhus was defined by its Market town stage and many expansive, multi-winged merchants houses were built in the 1500s around Immervad and the eastern section of Vestergade.
Split into simpler sentences: Aarhus was defined by its Market town stage with many expansive, multi-winged merchants houses. In the 1500s merchants built many such houses around Immervad and the eastern section of Vestergade.