Possible Clues:

• French mathematician
• Mathematician's achievement displayed outside empty room
• Pierre de __, French mathematician known for his 'last theorem'
• Mathematician's achievement captivating room
• French mathematician known for his 'last theorem'
• Pierre de __, French mathematician famous for his 'last theorem'
• French mathematician with a noted 'last theorem'
• Mathematician's achievement hung round room
• French Mathematician (famous last theorem)
• Judge picked up pad - he had no room to write down proof