Stanley Arkin of Arkin Kaplan Rice is defending a prince in a breach of contract case that involves a most unprincely amount of money. His Serene Highness Prince Albert II of Monaco is being sued for about $60,000. The plaintiff, Robert Eringer of Santa Barbara, Calif., claims that the prince stiffed him on one quarterly payment for investigative work he conducted for Monaco between 2005 and 2007.

Mr. Arkin smells a shakedown. After removing the case from California state court to Los Angeles federal district court, he filed a motion to dismiss, claiming that before Mr. Eringer filed suit, he sent the prince a letter demanding $60,000.