Possible Clues:

• Turkish (Empire)
• One Constantinople ruler
• A long cushioned seat for an old Turk?
• Description of empire's excessive when applied to sultanate
• What one gets for lying to and fro if one is a Turk
• Anyhow, it's not a cat occupying the seat
• Empire of old
• A bit of furniture to go up and down over him
• To to and fro over him, a Turk
• Cushioned footrest