She served in at least four major engagements during the Gunboat War before she was transferred to the Norwegian navy after the Treaty of Kiel brought about the separation of Norway from Denmark in 1814.

[3][b] On 6 March 1811, Lolland sailed to her new station as part of the naval defences of southern Norway, where she was the command ship for a division of brigs.

As the British rowed boldly in, they met unexpected fire from howitzers and muskets; they immediately withdrew, with the Danish boats in pursuit.

[11] In the second day’s fight, Algerine sent a boat and sweeps to Brev Drageren, which helped her escape the Danes, though not until after her crew had rowed for 30 hours.

[12] On 17 August 1811 HMS Manly sailed from Sheerness with a convoy for the Baltic under Lieutenant Richard William Simmonds.

The Danish brigs were sailing westward along the coast when they sighted the two strange vessels, which by their night signals appeared to be enemy.

[13] The Danes set out in pursuit, with Samsø, which was closest, sailing for the nearer of the enemy vessels, Alsen and Lolland following.

[15] In 1812, the Danish-Norwegian naval forces based in Norway were utilizing a sheltered but weakly defended anchorage at Sandoya.

The Dano-Norwegian force consisted of the frigate Najaden, three brigs - Lolland, Kiel (under the command of Otto Frederick Rasch),[16] and Samsøe - as well as a number of gunboats.

In late December 1813 Lolland, The Seagull, and Samsøe sailed to Frederickshavn, Jutland to escort a convoy of some 45 vessels carrying much-needed grain to Norway.

The brigs Lolland, Seagull, Alsen and Kiel had sailed to Frederickhavn to escort a large convoy of some 80 much-needed grain ships from Denmark to Norway.