After the Compromise of 1867, the Austro-Hungarian Empire was ruled by an Monarch who was called kaiserlich und koeniglich (Imperial and Royal, signifying an office with the qualities of emperor and king in a mystical melting-together called Personalunion). The Empire (g) comprised, at various times, what is now the Czech Republic, Hungary, Slovakia, Slovenia, and bits of many other nations. The western parts of the empire carried the k.u.k. designation (g) until 1918. The alliteration of the two 'K's led the Austrian writer Robert Musil to invent the designation Kakania, or Kakanien in German, a neologism which is still in use (g). Here is a translation of Musil's description of 'Kakania' in The Man Without Qualities.
Now, you might think that with the death of Emperor Franz Joseph in1916 and the collapse of the Austo-Hungarian Empire, the Austrians might have lost their taste for emperors and kings. Weit gefehlt/au contraire, not bloody likely! While strolling through the pedestrian zone in Meidling, Vienna, I found a Sockenkaiser (Sock Emperor) and a Knopfenkoenig (Button-King) ruling not 200 meters from one another, in perfect harmony: