Possible Clues:

• Seat chucked, we hear?
• Regal office shed, we hear
• Seat lost deliberately, it's said
• Presumably, seating area in The Palace where member of royal family relaxes watching The Queen
• Shed reportedly used for lavatory, commonly
• Ruler's seat
• The short king's placed on one?
• Seat flung in the air, we hear
• Center of a court
• Seat for royalty