IHG is offering a promotion with rates offering a 50% discount.
IHG offers some great discounts in Europe. You have to book you stay by August 24 for stays until April 30 2021 on Best Flexible rate bookings.
However you have to note the following despite the flexible rate booking, which is a little bit odd:
Bookings cannot be amended, full payment is required upon booking and no refunds will be given for cancellations
This might not be ideal, so the rate is best for short notice stays.