Possible Clues:

• Politician, he included silver for all to see
• Netherlands seat of government (with ''The'')
• See 1
• 'Iron' William, old-time British heavy-weight champion
• ___ Tribunal (international arbitration court)
• The ..... is the Netherlands seat of government
• Noted court site, with 'The'
• Dutch government seat (with ''The'')
• Dutch government seat, with 'The'
• Escher Museum site, with ''The''