Complex sentence: At the west end of St. Mark's Square, the mansion called Banski dvori, the former residence of the Ban (civil governor) of Croatia, was built at the beginning of the 19th century and yet, it can be classed among the Zagreb antiquities.
Split into simpler sentences: At the west end of St. Mark's Square, is a mansion called Banski dvori, the former residence of the Ban (civil governor) of Croatia. Although it was built at the beginning of the 19th century, it is often classed among the Zagreb antiquities.