In 1945 the Lower Saxony National Party was founded as a re-creation of the regionalistGerman-Hanoverian Party that had been active in the period between the creation of the German Empire in 1871 and the Nazi Party's seizure of power in 1933. Two groups of people initiated the process: one around Ludwig Alpers and Heinrich Hellwege in Stade, the other around Georg Ludewig, Karl Biester, Wolfgang Kwiecinski, and Arthur Menge in Hanover. On May 23, 1946 Heinrich Hellwege, Landrat in Stade, was formally elected to serve as chairman of the NLP. The NLP aimed principally at the establishment of a Lower Saxon state within a federal Germany as well as representing Christian conservatism. In 1947, a year after the establishment of Lower Saxony as a state, the party reverted to its former name of the German Party. It soon expanded into neighbouring states under the chairmanship of Heinrich Hellwege and gained 27 seats in the first Lower Saxon Landtag election in 1947 It sent two delegates to Bonn to serve in the constitutional convention of 1948/49. The German Party was among the parties that supported a market economy in the Bizonal Economic Council, thus laying the groundwork for the "bourgeois coalition" in power in Bonn between 1949 and 1956.
Coalition
In the 1949 federal election the party received 4% of the national vote and won 18 seats. As a result, it became a coalition partner of the Christian Democrats, the Christian Social Union and the Free Democrats in the government of Konrad Adenauer. The DP vote fell to 3.3% with 15 seats in the 1953 election, although it retained its place in the governing coalition and again in 1957 when the DP went back up to 17 seats with 3.4% of the vote. A short-lived Free People's Party had been formed in 1956 by Franz Blücher, Fritz Neumayer and others who had left the Free Democrats, but the following year the FVP merged into the German Party, possibly contributing to a slight increase in the DP vote in 1957. German Party ministers in these governments were Heinrich Hellwege, Hans-Joachim von Merkatz and Hans-Christoph Seebohm. In 1955 Hellwege resigned his federal office to become Premier/ Prime Minister of Lower Saxony. The party opposed a planned economy, land reform and co-determination and sought to represent those who had served in the Wehrmacht and the Waffen-SS. The German Party of the 1950s has been characterized as a "party of indigenous Lower Saxonian middle class", that featured extremely "states' rights, monarchist and partially also nationalist positions".
Decline
The German Party had been instrumental in setting an electoral threshold for all parties contesting a federal election and this led to problems when the CDU refused to allow German Party candidates a free run for a reasonable number of constituency seats as it had done in 1957. With the DP facing elimination from the Bundestag, nine of its 17 parliamentary incumbents left the party to join the CDU. As a result, the German Party quit the government in 1960, a year before the next federal election, and merged with the refugees' party to form the All-German Party. However, 2.8 per cent of the vote in the 1961 federal election did not win the GDP representation in the national parliament. A merger of two parties, which represented opposing voter clienteles, had turned into a political disaster unforeseen by the national party elites. The DP last entered a state parliament by winning four deputies in the Bremen state election of 1963. A year later, however, the deputies were involved in the founding of the far-right National Democratic Party of Germany.