The 3rd General Command (da|3. Generalkommando) (formerly the General Command of the Duchies (da|Generalkommandoen over Hertugdømmerne)) was the overall command of all Royal Danish Army units in Duchies of Holstein and Lauenburg. The command was abolished following Denmark's loss of Schleswig-Holstein, following the Second Schleswig War.
| Portrait | Name | Term of office | |||||
|---|---|---|---|---|---|---|---|
| Took office | Left office | Time in office | |||||
| 1 | Lieutenant field marshal Frederick Ernest of Brandenburg-Kulmbach | 1739 | 10 March 1762 | years | |||
| 2 | General field marshal Claude Louis, Comte de Saint-Germain | 10 March 1762 | 1769 | years | |||
| 3 | Lieutenant general Prince Charles of Hesse-Kassel | 1769 | 19 March 1814 | years | |||
| 4 | General Prince Frederik of Hesse | 20 March 1814 | 25 March 1842 | ||||
| 5 | Prince Frederick of Nør | 31 March 1842 | 18 April 1846 | ||||
| – | 18 April 1846 | ? | years | ||||
| ? | 11 August 1850 | 30 November 1851 | |||||
| ? | 1 December 1851 | 19 August 1852 † | |||||
| Portrait | Name | Term of office | |||||
|---|---|---|---|---|---|---|---|
| Took office | Left office | Time in office | |||||
| 1 | 10 December 1856 | 23 June 1857 | |||||
| 23 June 1857 | 17 June 1863 † | ||||||
| 2 | Peter Frederik Steinmann | 22 October 1863 | 3 January 1864 | ||||
| Danish: Generalkommandoen over Hertugdømmerne | General Command of the Duchies | 1739 | – | 1852 | |
| Danish: Generalkommandoen over Holsten og Lauenborg | General Command of Holstein and Lauenburg | 1852 | – | 1855 | |
| Danish: 3. Generalkommando | 3rd General command | 1855 | – | 1864 |