These are some more bonus point/mile offers available in Europe, you can find the details with proper links on my Gold Crown Page If you are referring to promo codes for discounts and such I have not really seen any from BW for quite a while, especially since they have their Best Rate Guarantee feature.

Double Czech Airlines OK Plus Miles for stays in Vienna: (BW Hotel Beethoven, BW Hotel Erzherzog Rainer, BW Premier Hotel Römischer Kaiser) or Innsbruck: BW Hotel Goldener Adler, BW Parkhotel Leipzigerhof, BW Hotel Neue Post

Double Gold Crown Points or Double Airline Miles on all qualifying GCCI stays in Bulgaria

Double Gold Crown Points on all qualifying GCCI rates at the Best Western Hotel De Greuze , Tournus

Double Gold Crown Points or Double Airline Miles on all qualifying GCCI stays in Greece.

1,000 Bonus Gold Crown Points on weekend stays on all qualifying GCCI rates at 17 locations in Italy

1,000 Bonus Gold Crown Points on weekday stays on all qualifying GCCI rates at 12 locations in Italy

Double Gold Crown Points or 250 Bonus Miles on all qualifying GCCI rates at 9 locations in Italy.

Double Gold Crown Points on all qualifying GCCI rates at the Best Western Hotel 'T Voorhuys Emmeloord or the Bw Grand Hotel Arion, Vlissingen

Double Gold Crown Points or Double Airline Miles on all qualifying GCCI stays in Romania.