The Treaty of Frederiksborg refers to the treaty

Treaty

A treaty is an express agreement under international law entered into by actors in international law, namely sovereign states and international organizations. A treaty may also be known as an agreement, protocol, covenant, convention or exchange of letters, among other terms...

 signed at Frederiksborg Palace

Frederiksborg Palace

Frederiksborg castle is a castle in Hillerød, Denmark. It was built as a royal residence for King Christian IV, and is now known as The Museum of National History. The current building replaced a previous castle erected by Frederick II, and is the largest Renaissance palace in Scandinavia...

 on 3 July 1720 (14 July 1720 (Gregorian calendar

Gregorian calendar

The Gregorian calendar, also known as the Western calendar, or Christian calendar, is the internationally accepted civil calendar. It was introduced by Pope Gregory XIII, after whom the calendar was named, by a decree signed on 24 February 1582, a papal bull known by its opening words Inter...

)) that ended the Great Northern War

Great Northern War

The Great Northern War was a conflict in which a coalition led by the Tsardom of Russia successfully contested the supremacy of the Swedish Empire in northern Central Europe and Eastern Europe. The initial leaders of the anti-Swedish alliance were Peter I the Great of Russia, Frederick IV of...

 between Sweden

Sweden

Sweden , officially the Kingdom of Sweden , is a Nordic country on the Scandinavian Peninsula in Northern Europe. Sweden borders with Norway and Finland and is connected to Denmark by a bridge-tunnel across the Öresund....

 and Denmark-Norway. Sweden paid 600,000 Riksdaler in damages, broke the alliance with Holstein

Holstein

Holstein is the region between the rivers Elbe and Eider. It is part of Schleswig-Holstein, the northernmost state of Germany....

 and forfeited its right to duty free passage of Öresund

Oresund

The Sound , is the strait that separates the Danish island Zealand from the southern Swedish province of Scania. Its width is just at the narrowest point between Helsingør, Denmark, and Helsingborg, Sweden...

. Also, Denmark got the full control over the land of Schleswig

Schleswig

Schleswig or South Jutland is a region covering the area about 60 km north and 70 km south of the border between Germany and Denmark; the territory has been divided between the two countries since 1920, with Northern Schleswig in Denmark and Southern Schleswig in Germany...

.

The treaty further provided for the restoration of Danish-held areas in Swedish Pomerania

Swedish Pomerania

Swedish Pomerania was a Dominion under the Swedish Crown from 1630 to 1815, situated on what is now the Baltic coast of Germany and Poland. Following the Polish War and the Thirty Years' War, Sweden held extensive control over the lands on the southern Baltic coast, including Pomerania and parts...

to Sweden.