The palace entertains two distinguished and highly superstitious actors. Blackadder is careful not to mention the name of the Scottish play.
The Scottish Play and the Bard's play are euphemisms for William Shakespeare's Macbeth. The first is a reference to the play's Scottish setting, the second a reference to Shakespeare's popular nickname. According to a theatrical superstition, called the Scottish curse, saying Macbeth inside a theatre will cause disaster. A variation of the superstition forbids direct quotation of the play while inside a theatre.