Lisbon Regicide
The assassination of King Carlos and the Prince Royal was the effective end of a constitutional monarchy in Portugal (later confirmed by the 5 October 1910 revolution). The regime functioned for another 33 months with growing agitation and demands for reform (although considerably less than in the future First Republic). It cannot be denied that the weak and permissive attitude in the Government of Acclamation was an incentive for the Republican Party to attempt another coup. The assassinations did not change the system of government; instead, they delayed the change.
Economic history of Portugal
In 1822, Portugal lost its main colony, Brazil. The transition from absolutism to a parliamentary monarchy involved a devastating Civil War from 1828 to 1834. The governments of the Constitutional Monarchy were not able to truly industrialize and modernize the country; by the dawn of the 20th century, Portugal had a GDP per capita of 40% of the Western European average and an illiteracy rate of 74%. Portuguese territorial claims in Africa were challenged during the Scramble for Africa. Political chaos and economic problems endured from the last years of the monarchy to the first Republic of 1910–1926, which led to the installing of a national dictatorship in 1926. While Finance Minister António de Oliveira Salazar managed to discipline the Portuguese public finances, it evolved into a single-party corporative regime in the early 1930s—the "Estado Novo"—whose first three decades were also marked by a relative stagnation and underdevelopment; as such, by 1960 the Portuguese GDP per capita was only 38 percent of the EC-12 average.