The respective territories of the prince-bishopric and the canton of Basle. Since the first half of the 16th century, the prince-bishop resided in Porrentruy ("Prentru" on the map). In the 19th century, the city of Basle, which was until then part of the canton, will secede to form a separate canton (Basel-Stadt). Cropped from a map of Switzweland published by Homann Heirs in 1751.