The Progressive Party (Spanish: Partido Progresista) was one of the two Spanish political parties that contended for power during the reign of Isabel II (reigned 1833–1868). It was to the left of the opposing Moderate Party (Spanish: Partido Moderado) but also characterised itself as liberal. Like the Moderate Party, it supported Isabel against the claims of the Carlists.[1]
Like their Moderate opponents, they supported the monarchy of Isabel II, particularly against the Carlist pretenders. Their political position, however, was repeatedly compromised as Maria Christina and later Isabela herself continually attempted to achieve a compromise with the Carlists.