Possible Clues:

• Bohemians, e.g
• Composer Dvorák et al
• Citizens of a republic making threats to king audibly
• Declared source of funding for EU members
• Europeans reporting money orders
• Havel's compatriots
• People from Brno, say
• Controls, we hear, for some Europeans
• Tartans talking to Bohemians, for example
• Neighbors of Poles