The Conservative Democratic Party of Switzerland (, BDP; , PBD; , PBD; , PBD; Swiss Democratic Bourgeois Party) was a conservative political party in Switzerland from 2008 to 2020. After the 2019 federal election, the BDP had three members in the National Council. It was founded as a moderate splinter group from the national-conservative Swiss People's Party (SVP/UDC); it was created as a political party on the federal level on 1 November 2008. It was led by Martin Landolt. It had, until January 2016, one Federal Councillor, Eveline Widmer-Schlumpf, whose election in defiance of the SVP/UDC incumbent Christoph Blocher led to the creation of the party. It comprised most of the SVP/UDC's old centrist-agrarian wing, which had been overshadowed in recent years by its nationalist-activist wing. The party's name in German, French, Italian and Romansh came from "bourgeois", the traditional European term for a centre-right party. On 1 January 2021, the party merged with the Christian Democratic People's Party (CVP/PDC) to form the new party The Centre (DM/LC). Cantonal parties were allowed to continue operating under the existing BDP/PBD name. Foundation Soon after Eveline Widmer-Schlumpf's election to the Federal Council, the SVP/UDC excluded both her and the SVP/UDC's other Federal Councillor, Samuel Schmid, from the party group. Schmid, like Widmer-Schlumpf, was a member of the SVP/UDC's moderate wing; the party's dominant nationalist wing reckoned them both as unrepresentative of the SVP/UDC's populist campaigns. Some party members demanded that Widmer-Schlumpf and Schmid be thrown out of the party altogether. However, Swiss parties are legally federations of cantonal parties, so the SVP/UDC could not expel them directly. For them to have been expelled, the party's Grisons and Bern sections, to which Widmer-Schlumpf and Schmid belonged respectively, would have had to expel them. On 2 April 2008 the national SVP/UDC leadership called for Widmer-Schlumpf to immediately resign from both the Federal Council and the party. When Widmer-Schlumpf declined to do so, the national SVP/UDC demanded that the Grisons branch expel her. The Grisons section stood by Widmer-Schlumpf, but she was expelled from the national SVP/UDC on the following 1 June. On 16 June 2008, the delegates' convention of the SVP/UDC's former Grisons branch voted to change its name to BPS Graubünden (Conservative Party of Switzerland-Graubünden), becoming the first cantonal section of what would become the BDP/PBD. A second cantonal section was founded in Bern on 21 June 2008 under the name BDP/PBD (Conservative