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The City of Ploen's History Places of Interest Picture Gallery

The City of Ploen's history

The Ice Age and Slavonian Settlement

The relief of today’s urban area of Ploen with its hilltops and lakes was formed by the last ice age. Findings deriving from the medium stone age document a first settlement soon after the retraeat of the glaciers.

The islands and marshes offered the first settlers shelter; the waters provided ample food. In the course of the migration of peoples during the 7th century Slavonian tribes settled in the Ploen area. The erected a widespread fortification on the offshore island of “Olsborg”. The fortress was calle d “plune2 which means “ice free water”. In 1139 the Holstein Count , Adolf II of Schwanenberg destroyed the fortress and thus ended the Slavonian rule over the region of Ploen.

17th Rule of the Counts of Lauenburg – 12th – Century

20 years after its destruction Count Adolf II had the fortress rebuilt. It was soon moved to today’s Schlossberg (Castle Hill). In the course of the centuries the Castle of Ploen was altered and extended, but also destroyed by hostile armies.

In the shelter of the castle and close to the route for commerce leading from the City of Lübeck to the North a market settlement developed which received its town charter as “Plone” in 1236 by Lübeck – more than 750 years ago. Situated on a narrow isthmus in a favourable strategic location between the lakes and the small River Schwentine, Ploen remained the centre of the County of Holsten until this fell to the Danish Crown in the 15th century.

Residence of the Counts of Ploen – 17th – 18th Century

By succession the sovereign Duchy of Schleswig-Holsten-Sonderburg-Ploen including estates around Ahrensbök and Reinfeld emanated in 1622 from the Royal House of Denmark.
Ploen thus became the residence of a small state. In 1633, right during the Thirty Years´ War, Count Joachim Ernst had the fortified castle torn down which had meanwhile become inhabitable. In exactly the same location the new, now residential castle was erected within only 3 years building time – coming very close to the structural condition of today.

With the construction of the castle Ploen moved up to become the residence of a small, yet independent principality. As residential town Ploen advanced considerably. Due to the intensive construction activities of the Dukes Joachim Ernst, Johann Adolf and Friedrich Carl the characteristic townscape, as it can still be admired today, was formed.
For example Duke Johann Adolf (“Hans Adolf”) founded in the Northwest of the city the Neustadt (New Town) in order to foster the local trades and to improve the economic power of the principality, whereas Friedrich Carl enhanced the quarter around the castle by several baroque buildings and the generous park. At that time the town comprised about 1000 inhabitants and stretched from the bridge over the River Schwentine in the East to today’s pedestrian zone in the West. The access was on both sides secured by city gates – the Lübecker Tor (“Lübsche”) and the Wentorfer Tor.

Times under Danish Rule - 18th – 19th Century

In 1761 the principality fell back to the Danish Crown under the rule of King Christian VIII. Thus Ploen belonged to Denmark up to the German–Danish War in 1864. During that time Ploen temporarily became the summer residence of the Danish king, who had the summer gardens newly constructed. But otherwise Ploen remained a remote “one-horse” town with some 2000 souls.

Ploen during the Empire, the Weimar Republic and the Nazi Rule

In 1867 Ploen became the Prussian county seat of the newly founded administrative county of Ploen. One year later a Prussian cadet school was established on the premises of the castle.
Due to its scenic surroundings Ploen gained importance as a holiday resort at the end of the 19th century. Excursion restaurants opened up and public swimming baths as well as look-out towers were built.

Ploen after 1945

Ploen grew quickly after the war. Major residential areas had already been built between the two World Wars. Those were enlarged when the town took in many refugees after World War II. Not only the urban area of Ploen sprawled through the years – the city also became the base of two military institutions- the Naval Sergeants School and a pioneer battalion.

The infrastructure also underwent changes. The former main traffic road, the Lange Straße, was converted into a pedestrian zone. From then on the main traffic was re-routed away from the Eutiner Straße and Johannisstraße over the in 1985 newly erected bridges overstretching the lakes in the inner city. At the beginning of the nineties the federal government decided to dismantle the pioneer battalion which had been stationed in the barracks at the Eastern city limits.

Today the new quarter Stadtheide is situated there along a through road to Niederkleevez. This is a new residential area with supermarkets and a nursery home for senior citizens. The new finance office is also located there since its former building was acquired by the Fielmann Akademie along with the castle. A training institute for opticians is now being set up in the building. Today the Town of Ploen has grown to a fully scaled modern county town whose infrastructure is dominated by small and medium-sized business enterprises.

But the predominant factor remains the local tourism. The town’s most important asset still is its beautiful location on the shores of the Big Ploen Lake to the South - with 36km² being the largest lake in Schleswig-Holstein. In the North of the town we find a lake district situated right in the middle of the Natural Park “Holsteinische Schweiz”. The wide-open landscape, characterized by its waters, bright forests and healthy meadows, invites every visitor to spend an active vacation, to relax and rejoice, to discover and absorb the beautiful scenery. The twinning towns of Ploen are PLAU in Mecklenburg-Vorpommern and KSOUR ESSAF in Tunisia.