The first regulation regarding the Splitflag dates from March 27, 1630, in which King Christian IV orders that Norwegian Defensionskibe (armed merchants ships) may only use the Splitflag if they are in Danish war service.
The flag holds the world record of being the oldest continuously used national flag.
A red field charged with a white cross extending to the edges; the vertical part of the cross is shifted to the hoist side.
It is obvious that some confusion must have existed regarding the Splitflag.
In 1696 the Admiralty presented the King with a proposal for a standard regulating both size and shape of the Splitflag.
The private company Dansk Standard, regulation number 359 (2005), defines the red colour of the flag as Pantone 186c. This is the earliest known undisputed colour rendering of the Dannebrog.