Complex sentence: During the whole 15th and 16th centuries, the Rospigliosi contued trade and had a flourishing bank in Pistoia, with branches all over Europe, and until the first half of the 17th century they got their wealth from wool production and agriculture.
Split into simpler sentences: During the whole 15th and 16th centuries, the Rospigliosi continued trading and had a flourishing bank in Pistoia, with branches all over Europe. Until the first half of the 17th century they got their wealth from wool production and agriculture.