Prenuptial agreements have long been recognized as valid in several European countries, such as France, Belgium, the Netherlands, Germany, Poland, Switzerland, Sweden, Denmark, Norway and Finland. While in some of these countries there are limits on what restrictions the courts will see as enforceable or valid (e.g. Germany after 2001, where appeals courts have indicated this), a written and properly initiated contract, freely agreed upon, cannot be challenged by, for instance, invoking the circumstances under which the marriage broke down or the conduct of either part. In France and Belgium (as in Quebec, which has the same judicial tradition) prenuptial agreements must be set up in the presence of a notary.