Washington Conference Principles on Nazi-Confiscated Art is a document signed on December 3, 1998, in Washington during a conference organized at the initiative of the USA. Representatives from 44 countries, including Poland, the Vatican, and 12 non-governmental organizations, declared their readiness to settle the issue of cultural property looted by Nazi Germany actively. Signatories committed to taking action to identify artworks plundered by the Nazi regime. The next step was to ensure fair solutions in the existing situation, including the return of looted cultural property to the rightful heirs of the owners