The Frankfurt Constitution (German: Frankfurter Reichsverfassung, FRV) or Constitution of St. Paul's Church (Paulskirchenverfassung), officially named the Constitution of the German Empire (Verfassung des Deutschen Reiches) of 28 March 1849, was an unsuccessful attempt to create a unified German nation state in the successor states of the Holy Roman Empire organised in the German Confederation. Adopted and proclaimed by the Frankfurt Parliament after the Revolutions of 1848, the constitution contained a charter of fundamental rights and a democratic government in the form of a constitutional monarchy. King Frederick William IV of Prussia was designated head of state as "Emperor of the Germans" (Kaiser der Deutschen), a role he rejected.