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
During the 15th and 16th centuries, with its global empire that included possessions in Africa, Asia, South America, and Oceania, Portugal remained one of the world's major economic, political, and cultural powers. English, Dutch, and French interests in and around Portugal's well-established overseas possessions and trading outposts tested Portuguese commercial and colonizing hegemony in Asia, Africa, and the New World. In the 17th century, the lengthy Portuguese Restoration War (1640–1668) between Portugal and Spain ended the sixty-year period of the Iberian Union (1580–1640). According to a 2016 study, Portugal's colonial trade "had a substantial and increasingly positive impact on [Portugal's] economic growth". Despite its vast colonial possessions, Portugal's economy declined relative to other advanced European economies from the 17th century and onward, which the study attributes to the domestic conditions of the Portuguese economy.