Carl Pontus Gahn was a Swedish

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....

 military officer who participated in the Russo-Swedish War

Russo-Swedish War (1788-1790)

The Russo-Swedish War of 1788–90, known as Gustav III's Russian war in Sweden, Gustav III's War in Finland and Catherine II's Swedish War in Russia, was fought between Sweden and Russia from June 1788 to August 1790.-Background:...

 in Finland

Finland

Finland , officially the Republic of Finland, is a Nordic country situated in the Fennoscandian region of Northern Europe. It is bordered by Sweden in the west, Norway in the north and Russia in the east, while Estonia lies to its south across the Gulf of Finland.Around 5.4 million people reside...

 in 1788-1789, the Finnish War

Finnish War

The Finnish War was fought between Sweden and the Russian Empire from February 1808 to September 1809. As a result of the war, the eastern third of Sweden was established as the autonomous Grand Duchy of Finland within the Russian Empire...

 campaign in Norway

Norway

Norway , officially the Kingdom of Norway, is a Nordic unitary constitutional monarchy whose territory comprises the western portion of the Scandinavian Peninsula, Jan Mayen, and the Arctic archipelago of Svalbard and Bouvet Island. Norway has a total area of and a population of about 4.9 million...

 in 1808 and the unsuccessful invasion of Norway

Swedish campaign against Norway (1814)

The Swedish-Norwegian War, also known as the Campaign against Norway, was fought between Sweden and Norway in the summer of 1814. The war resulted in Norway entering into union with Sweden, but with its own constitution and parliament.-Background:...

 at Eidskog

Eidskog

Eidskog is a municipality in Hedmark county, Norway. It is part of the traditional region of Glåmdal. The administrative centre of the municipality is the village of Skotterud. Eidskog was separated from the municipality of Vinger in 1864....

 in 1814 where he was imprisoned. He was ennobled in 1809, taking the title Gahn

Gahn

Gahn is a Swedish family, one member of which was ennobled in 1809 with the name Gahn af Colquhoun. The family has claimed an unverified origin in a Scottish family Colquhoun, a claim which was confirmed 1781 in a letter by the Lord Lyon King of Arms, but on dubious grounds, as later research has...

 af Colquhoun

Clan Colquhoun

Clan Colquhoun is a Highland Scottish clan.The clan motto shown above in the crest best translates to "if I can."-Origins of the clan:In the 13th century Maol Domhnaich, Earl of Lennox granted the lands of Colquhoun, located in Dunbartonshire, to Humphry de Kilpatrick...

in acknowledgement of his Scottish

Scottish people

The Scottish people , or Scots, are a nation and ethnic group native to Scotland. Historically they emerged from an amalgamation of the Picts and Gaels, incorporating neighbouring Britons to the south as well as invading Germanic peoples such as the Anglo-Saxons and the Norse.In modern use,...

 ancestry (Gahn was itself a contraction via Cahun of the family name of Colquhoun). He was promoted to the rank of Major General

Major General

Major general or major-general is a military rank used in many countries. It is derived from the older rank of sergeant major general. A major general is a high-ranking officer, normally subordinate to the rank of lieutenant general and senior to the ranks of brigadier and brigadier general...

 in 1814 and became president of the Martial Court of Appeals (Krigshovrätten) in 1824.