Sønderborg Castle (
German: ''Schloss Sonderburg''; ) is located in the town of
Sønderborg
(; ) is a Denmark, Danish town in the Region of Southern Denmark. It is the main town and the administrative seat of Sønderborg Municipality (Kommune). The town has a population of 28,333 (1 January 2025),[Denmark
Denmark is a Nordic countries, Nordic country in Northern Europe. It is the metropole and most populous constituent of the Kingdom of Denmark,, . also known as the Danish Realm, a constitutionally unitary state that includes the Autonomous a ...]
on the island of
Als
Amyotrophic lateral sclerosis (ALS), also known as motor neuron disease (MND) or—in the United States—Lou Gehrig's disease (LGD), is a rare, terminal neurodegenerative disorder that results in the progressive loss of both upper and low ...
in
South Jutland. It houses a museum focusing on the history and culture of the area. The castle is located in the middle of the town, in a park setting overlooking
Als Fjord. The museum is open year-round.
History
Sønderborg Castle began probably as a fortified tower constructed by
Valdemar the Great in 1158, built on an islet in Als Strait (''Als Sund'') that later was connected to the island of Als. As it lies to the south of the isle of Als, it was named ''Sønderborg'', literally "southern fortress" (compare English "
Sudbury"). The castle was built to provide protection against attacks by the
Wends
Wends is a historical name for Slavs who inhabited present-day northeast Germany. It refers not to a homogeneous people, but to various people, tribes or groups depending on where and when it was used. In the modern day, communities identifying ...
and was part of a larger system of fortifications. Over the centuries, the castle has gradually been enlarged and rebuilt.
In the years following construction of Valdemar's fortified tower, an important struggle developed between the Danish king and the duke of
Schleswig
The Duchy of Schleswig (; ; ; ; ; ) was a duchy in Southern Jutland () covering the area between about 60 km (35 miles) north and 70 km (45 mi) south of the current border between Germany and Denmark. The territory has been di ...
over ownership of the island of Als and the town of Sønderborg. Ownership of the castle changed hands many times.
A peak in the history of the castle was the wedding of
Valdemar IV of Denmark (Valdemar Atterdag) (ca. 1320-1375) to
Helvig of Schleswig, the sister of
Valdemar V, Duke of Schleswig.
Around 1350, the castle was expanded significantly by the addition of both the Blue Tower (''Blåtårn'') and huge outer walls. In 1490, the fortress became the property of the Danish crown. Both
King Hans and his son
Christian II extended Sønderborg Castle and made it into one of the country's strongest fortresses.
In 1532, Christian II was lured into an ambush and taken to Sønderborg Castle, where he was held as a prisoner of state for seventeen years (1532-1549). Legend tells that the dethroned king was confined to the Blue Tower, but in reality he lived in comparatively lavish circumstances and probably was allowed freedom of movement within the outer walls, if sometimes under closely guarded conditions. The former king sometimes even joined the noble hunts at Als.
Christian III in the mid-sixteenth century had the fortress modified and converted into a four-wing castle by architect
Hercules von Oberberg (1517–1602) between 1549-57. King Hans'west wing was preserved and a further three wings were added in the new
Renaissance
The Renaissance ( , ) is a Periodization, period of history and a European cultural movement covering the 15th and 16th centuries. It marked the transition from the Middle Ages to modernity and was characterized by an effort to revive and sur ...
style. After Christian III's death in 1559, Hercules von Oberberg built the unique
castle chapel in 1568-1570 for Queen Mother
Dorothea.
k
After Dorothea's death in 1571, the castle passed into the ownership of
Hans II, Duke of Schleswig-Holstein-Sonderburg (also known as Hans the Younger). Under his rule, the castle became the center of a tiny duchy,
Schleswig-Holstein-Sonderburg
Schleswig-Holstein-Sonderburg was the name of a branch line of the House of Oldenburg as well as the name of their land. It existed from 1564 until 1668 and was a titular duchy under the King of Denmark, rather than a true territorial dukedom in ...
. This, however, was divided after his death in 1622.
The castle remained in the hands of the dukes of Southern Jutland until 1667, when the ruined duchy of Sønderborg was attached to the Danish throne and the castle became a Danish estate. The duchy’s representative, the Prefect (''Amtmanden''), took up residence at the castle. It was otherwise more or less unused in the years 1667-1718.
In 1718-1726,
Frederik IV had the castle rebuilt in
Baroque
The Baroque ( , , ) is a Western Style (visual arts), style of Baroque architecture, architecture, Baroque music, music, Baroque dance, dance, Baroque painting, painting, Baroque sculpture, sculpture, poetry, and other arts that flourished from ...
style by contractor general
Wilhelm von Platen. The Blue Tower was demolished in 1755, and in 1764 the castle passed into the hands of the
Duke of Augustenborg; but, contrary to expectations, the castle did not become the duke's residence. Instead, it was rented out as a warehouse.
During both the
first and the second Slesvig wars (1848-1850, 1864), Sønderborg Castle was used as a camp hospital and for quartering Danish troops. After the war of 1864, the province and the castle became
Prussia
Prussia (; ; Old Prussian: ''Prūsija'') was a Germans, German state centred on the North European Plain that originated from the 1525 secularization of the Prussia (region), Prussian part of the State of the Teutonic Order. For centuries, ...
n property and served as barracks from 1867 until the area was reunified with Denmark in 1920. The last duke of Augustenborg, Ernst Günther, allowed Sønderborg County Museum to move into a part of the castle in 1920. The next year, the Danish state bought the castle from the Duke, taking over the castle in 1921 and allowing several institutions to use it as long as they paid heed to the expanding museum.
In 1945 and 1946, the castle was used as an internment camp for persons charged with offenses to the state.
The Royal Inspectors of Listed State Buildings, Peter Koch and Jørgen Stærmose, conducted a thorough restoration of the castle from 1964 to 1973, returning it to the Baroque form it had been given by Frederik IV in the 1720s. The windows from the barracks era were even replaced with "masks", windows with broad wooden frames made of planks like the ones in Platen's castle.
The museum and grounds
Since 1921 Sønderborg Castle has been the home for The Sønderborg Castle Museum (''Museet på Sønderborg Slot''), which is the main museum for the former Duchy of Slesvig. The museum houses local and regional history collections from the
Middle Ages
In the history of Europe, the Middle Ages or medieval period lasted approximately from the 5th to the late 15th centuries, similarly to the post-classical period of global history. It began with the fall of the Western Roman Empire and ...
to the present day, but with especial focus on the
Schleswig wars of 1848-50 and 1864,
World War II
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
, and the Reunification of 1920.
The museum also hosts exhibitions on navigation, textiles and handicrafts, and has a small art collection with works by prominent Southern Jutland painters over the years. The museum is a part of
Museum Sønderjylland, a constellation of museums in
Southern Jutland.
The original ramparts around the castle became a visible part of the gardens in the 1970s.
The Chapel of Sønderborg Castle
The unique chapel of Sønderborg Castle, also known as Queen Dorothea's Chapel (''Dronning Dorotheas Kapel'') was built 1568-70 by Hercules von Oberberg for Queen Mother Dorothea reflects the changing times in Denmark after the
Reformation
The Reformation, also known as the Protestant Reformation or the European Reformation, was a time of major Theology, theological movement in Western Christianity in 16th-century Europe that posed a religious and political challenge to the p ...
. It is almost untouched, and is considered to be one of Europe's oldest and best-preserved
Lutheran
Lutheranism is a major branch of Protestantism that emerged under the work of Martin Luther, the 16th-century German friar and Protestant Reformers, reformer whose efforts to reform the theology and practices of the Catholic Church launched ...
royal chapels.
Many of the items in the chapel were created in Antwerp workshop of painter
Frans Floris (1517–1570).
One of the royal couple’s sons,
John II, Duke of Schleswig-Holstein-Sonderburg
John the Younger (; ; 25 March 1545 – 9 October 1622) was the duke of Schleswig-Holstein-Sonderburg.
Biography
John was born on 25 March 1545 at Koldinghus Castle in Jutland, Denmark as the fourth child and third son of King Christian III ...
(1545–1622) had a burial room built in the chapel with an imposing portal of
marble
Marble is a metamorphic rock consisting of carbonate minerals (most commonly calcite (CaCO3) or Dolomite (mineral), dolomite (CaMg(CO3)2) that have recrystallized under the influence of heat and pressure. It has a crystalline texture, and is ty ...
and
alabaster
Alabaster is a mineral and a soft Rock (geology), rock used for carvings and as a source of plaster powder. Archaeologists, geologists, and the stone industry have different definitions for the word ''alabaster''. In archaeology, the term ''alab ...
.
The chapel’s organ is attributed to organ builder Hermann Raphaëlist (ca. 1515-1583) and it is estimated to have been built ca. 1570. The paintwork on the organ case dates mainly from 1626. Hermann Raphaëlis was of Dutch descent and was the son of organ builder Gabriel Raphael Rottensteen. Raphaëlis was summoned to Denmark ca. 1550, supposedly to build an organ for Roskilde Cathedral. Apart from the instrument at Roskilde Cathedral, built in 1555, he also built an organ for the Chapel of Copenhagen Castle in 1557. Raphaëlis later settled in Saxony, where he among other things built organs in the chapels of castles belonging to Elector August of Saxony, the Queen Dorothea’s son-in-law.
Under the west gallery of the chapel there is a choir loft over which there was originally a royal chair; this disappeared when the organ was built in its present position in 1626. The chairs were made by local wood carver, Niels Tagsen, who also fashioned the pulpit and the 3 figures which were placed on the organ in 1626. The organ case and doors were partly repainted by Wulf Petersen of Sønderborg on the same occasion.
The organ was reconstructed in 1996 by Danish organ builder and historian, Mads Kim Kjersgaard, in accordance with 16th century traditions with regard to tone and craftsmanship. The museum has a permanent exhibition of preserved parts from the Renaissance organ, including a rat's nest taken from one of the organ’s bellows.
The Great Hall
The Great Hall (''Riddersal'') is 34 meters long and was the reception room for ducal guests, and the scene of parties and dances. The room is still used for special events, such as in connection with the marriage of
Queen Margrethe II's niece, Princess Alexandra of
Sayn-Wittgenstein-Berleburg
Sayn-Wittgenstein-Berleburg was one of several imperial counties and later principalities ruled by the House of Sayn-Wittgenstein.
Most of the former county is located in the present district of Siegen-Wittgenstein (in the modern state of North ...
to
Count
Count (feminine: countess) is a historical title of nobility in certain European countries, varying in relative status, generally of middling rank in the hierarchy of nobility. Pine, L. G. ''Titles: How the King Became His Majesty''. New York: ...
Jefferson-Friedrich von Pfeil und Klein-Ellguth in 1998.
Management
Sønderborg Castle is owned by the Danish state, run by the Palaces and Properties Agency (''Slots- og Ejendomsstyrelsen'') and used by Sønderborg Castle Museum, which is jointly owned by the municipality of Sønderborg and by South Jutland County.
References
Other sources
* Otto Norn, Jørgen Paulsen and Jørgen Slettebo, ''Sønderborg Slot. Historie og bygning'', G.E.C. Gad forlag, 1963.
External links
Palaces and Properties Agency site on Sønderborg CastleThe Association of Castles and Museums around the Baltic Sea
{{DEFAULTSORT:Sonderborg Castle
Buildings and structures completed in 1158
Buildings and structures completed in 1350
Castles in Denmark
Listed buildings and structures in Sønderborg Municipality
Museums in the Region of Southern Denmark
Castles in the Region of Southern Denmark
History museums in Denmark
Museum Sønderjylland
Sønderborg
Royal residences in Denmark
Tourist attractions in Sønderborg Municipality