sentences:  In the early modern period, Płock was a royal city of Poland and capital of the Płock Voivodeship.The 16th century was the golden age of the city, before it suffered major losses in population due to plague, fire, and warfare, with wars between Sweden and Poland in the late 17th and early 18th centuries.At that time, the Swedes destroyed much of the city, but the people rebuilt and recovered.