The Radical Democratic Party was one of the Spanish

Spain

Spain , officially the Kingdom of Spain languages]] under the European Charter for Regional or Minority Languages. In each of these, Spain's official name is as follows:;;;;;;), is a country and member state of the European Union located in southwestern Europe on the Iberian Peninsula...

 political parties that contended for power during the reign of Amadeo I

Amadeo I of Spain

Amadeo I was the only King of Spain from the House of Savoy...

 (reigned 1870–1873) and the First Spanish Republic

First Spanish Republic

The First Spanish Republic was the political regime that existed in Spain between the parliamentary proclamation on 11 February 1873 and 29 December 1874 when General Arsenio Martínez-Campos's pronunciamento marked the beginning of the Bourbon Restoration in Spain...

 (1873-1874), opposing the Constitutional Party

Constitutional Party (Spain)

The Constitutional Party was one of the Spanish political parties that contended for power during the reign of Amadeo I and the First Spanish Republic , opposing the Radical Democratic Party....

.

The party was established in 1871, after the division of the Progressive Party

Progressive Party (Spain)

The Progressive Party was one of the two Spanish political parties that contended for power during the reign of Isabel II . They were to the left of the opposing Moderate Party , but also characterized themselves as liberal...

 following the death of General Juan Prim, 1st Marquis of los Castillejos. The left wing of the party, along with the cimbrios, monarchist faction of the Democratic Party

Democratic Party (Spain)

The Democratic Party was a Spanish political party in the reign of Isabella II , being a clandestine force except during the Progressive Biennium ....

 led by Cristino Martos, organised themselves as a party under the leadership of Manuel Ruiz Zorrilla

Manuel Ruiz Zorrilla

Manuel Ruiz Zorrilla was a Spanish politician. He served as prime minister of Spain for a little over ten weeks in the summer of 1871, and again for eight months between June 1872 and February 1873....

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The partydisintegrated after the 1874 restoration of the monarchy

Spain under the Restoration

The Restoration was the name given to the period that began on December 29, 1874 after the First Spanish Republic ended with the restoration of Alfonso XII to the throne after a coup d'état by Martinez Campos, and ended on April 14, 1931 with the proclamation of the Second Spanish Republic.After...

, fleeing its members to left-wing monarchist parties or to republican parties. Ruiz Zorrilla and his supporters established the Progressive Republican Party, while the faction of Martos joined the Liberal-Fusionist Party

Liberal Party (Spanish Restoration)

The Liberal Party was a Spanish political party created in 1880 by Práxedes Mateo Sagasta. With the Partido Conservador of Antonio Cánovas del Castillo, it formed a bipartite system of alternating governments that characterised the Spanish Restoration during the final part of the 19th century and...

 of Práxedes Mateo Sagasta

Práxedes Mateo Sagasta

Práxedes Mariano Mateo Sagasta y Escolar was a Spanish politician who served as Prime Minister on eight occasions between 1870 and 1902—always in charge of the Liberal Party—as part of the turno pacifico, alternating with the Liberal-Conservative leader Antonio Cánovas...

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