Eckernförde, Ekelenforda antiquum Holsatiae ad Oceanum peninsulare oppidum.

COMMENTARY BY BRAUN: "Eckernförde is a small town in Holstein, situated opposite Eckernborch castle to the north; this latter was destroyed in the Danish War, but its foundations, moats and ramparts can still be made out quite clearly. Erckernförde lies on a peninsula in the Baltic, wherefore it has a safe and convenient harbour.
A bad beer is brewed there, which is useful for purging the body, however, and which is exported and sold to Denmark and the Duchy of Schleswig and to Holstein. Although the town is surrounded by salt water, it has freshwater fountains on the streets from which the beer is brewed."

The bird's-eye view from the south clearly shows the layout of the town, which was probably founded in the 13th century, on a bay northwest of Kiel. At the end of the 12th century, the king of Denmark had a fortress built on Eckernförde Bay to defend the adjacent trade route - before its destruction it faced the town from near the top of the picture, on a site now occupied by the bathing resort of Borby. Visible on the top of the hill not far from this point is Borby church, the town's oldest surviving work of architecture.
The church of St Nicholas in the town centre dates back to the start of the 13th century. Eckernförde is first mentioned as a town in 1302. In the Middle Ages and the early modern era the port was important primarily as a point of transhipment for agricultural produce. In 1864, it was taken from Denmark and given to Prussia, whereby Eckernförde lost the large part of its trade. (Taschen)

Reference: Van der Krogt 4, 1178, state 1; Taschen, Braun and Hogenberg, p.383.