Augustenborg (German:Augustenburg) is a town onAls Island inSønderborg Municipality,Region of Southern Denmark inDenmark. The town lies at the head ofAls Fjord. To the east is theLittle Belt.Ferry service connects Augustenborg to the island ofFunen from the nearby town ofFynshav.

Augustenborg
Town
Augustenborg
Coat of arms
Augustenborg Location in Denmark Show map of Denmark Augustenborg Augustenborg (Region of Southern Denmark) Show map of Region of Southern Denmark
Coordinates:54°56′50″N9°52′17″E / 54.94722°N 9.87139°E /54.94722; 9.87139
Country	Denmark
Region	Southern Denmark
Municipality	Sønderborg
Area
• Urban	1.95 km2 (0.75 sq mi)
Population  (2024)
• Urban	3,184
• Urban density	1,600/km2 (4,200/sq mi)
Time zone	UTC+1 (CET)
• Summer (DST)	UTC+2 (CEST)
Postal code	DK-6440 Augustenborg

Augustenborg has a population of 3,184 (1 January 2024).^[1] It was the main town ofAugustenborg Municipality until its merger into Sønderborg Municipality in 2007.

The town grew up aroundAugustenborg Palace which was established byErnest Günther, a member of the ducal house ofSchleswig-Holstein (its branch ofSønderborg) and a cadet of the royal house of Denmark, in the years after 1651. The palace, and the town consequently, received the name in honor of Ernest's wife Auguste, herself also from a branch of dukes of Schleswig-Holstein.

The palace became the chief seat of their line which used the name Augustenborg as its branch name. Later, a Danish king made the head of that line specificallyDuke of Augustenborg. They grew in relative prominence in late 18th century, and in the 19th centurySchleswig-Holstein Question, being the symbols of pro-German nationalistic movement in Schleswig-Holstein. The area was annexed byPrussia in 1864 from Denmark, but was returned in 1920 following aplebiscite.

The Augustenborg male line died out in 1931, upon the death ofAlbert, Duke of Schleswig-Holstein, a grandson ofQueen Victoria. Their female-linedescendant today holds the throne ofSweden.

This listexcludes members of the nobility of theHouse of Schleswig-Holstein-Sonderburg-Augustenburg, some of whom were born atAugustenborg Palace. They can be seen using this link:

• Richard Parkinson (1844 in Augustenburg, Als Island – 1909), a Danish explorer and Anthropologist
• Johannes Streich (1891 in Augustenburg – 1977), a German general in the Wehrmacht during WWII and veteran of WWI. During the early stages of theNorth African Campaign he was sacked for his poor performance during theSiege of Tobruk
• Bjørn Paulsen (born 1991 in Augustenburg), a footballer who plays for Swedish sideHammarby IF, over 260 club caps

• Municipal statistics:NetBorger Kommunefakta
• Municipal mergers and neighbors:Eniro new municipalities map

• Sønderborg municipality's official website(in Danish)