 On September 19, 1945, American administrators created the new state of Greater Hesse () from the Prussian provinces of Hesse and Nassau and from Frankfurt am Main.Greater Hesse was renamed Hesse on December 1, 1946, and later became one of the federal states of West Germany.Parts of the state on the banks of the Rhine subsequently became part of the Rhineland-Palatinate ("Rheinland-Pfalz") federal state.