Having entered the army at the age of 15, he received from King Gustav III, in 1791, a secret commission to excite the Norwegians to rebellion.

[2] He was the leader of a conspiracy of officers and noblemen, among them Carl Johan Adlercreutz, against Gustav IV Adolf and triggered the Coup of 1809 by marching with his army to Stockholm.

In 1831 he was involved in a controversy for publishing allegedly secret state documents and his private correspondence with various Swedish princes, actions for which he remained unrepentant.

He spent the last 25 years of his life residing in Gustafsvik Manor in Kristinehamn Municipality, Värmland, where he died in 1835.

They had four children:[4] Note: the below sources give an overview of Adlersparre in the English language, but they contain some factual errors.