Within the European Union, but excluding the member nation of Denmark, Regulation 2201/2003 (known as Brussels II) sets out the rules on jurisdiction and the recognition and enforcement of judgments in matrimonial matters and in matters of parental responsibility for children of both spouses except for orders relating to matrimonial property. Jurisdiction is allowed to the courts of the Member State in which one or both spouses had a common domicile, a common nationality or were habitually resident. Once proceedings have been initiated, other states must refuse jurisdiction. Once a court accepts jurisdiction, it is for the "lex fori" to apply its own choice of law rules: both Ireland and the United Kingdom apply the "lex domicilii"; the other EU states apply the law of habitual residence.