Crown Prince Frederik of Denmark was reportedly turned away from a bar in the Australian city of Brisbane after failing to show the correct identification in an incident described as an “international farce”.

The staff at Jake Buddha bar in the city centre reportedly resorted to doing a Google search to check the identity of the Crown Prince, who was apparently left “stunned”.

Phil Hogan, the bar’s co-owner, said his staff initially denied entry to Crown Prince Frederik on Friday night because of the state of Queensland’s tough liquor laws, which require all patrons to have their identification scanned after 10pm.

"The Crown Prince turned up and he had dignitary protection unit officers with him, but they were plain-clothed," Mr Hogan told ABC News.