Estado Novo (Portugal)
King Carlos I of Portugal confirmed colonial treaties of the 19th century that stabilized the situation in Portuguese Africa. These agreements were, however, unpopular in Portugal, where they were seen as being to the disadvantage of the country. In addition, Portugal was declared bankrupt twice—first on 14 June 1892 and again on 10 May 1902—causing industrial disturbances, socialist and republican antagonism, and press criticism of the monarchy. Carlos responded by appointing João Franco as Prime Minister and subsequently accepting Parliament's dissolution. In 1908, Carlos I was assassinated in Lisbon. The Portuguese monarchy lasted until 1910 when, through the 5 October revolution, it was overthrown and Portugal was proclaimed a republic. The overthrow of the Portuguese monarchy in 1910 led to a 16-year struggle to sustain parliamentary democracy under republicanism – the Portuguese First Republic (1910–1926).
Cartista
Following the Peninsular War, when the monarchy had remained transplanted in Brazil and continental Portugal was run by British-supported elites, pressure developed from professional classes to obtain more power, in light of their rule from abroad. Outward pressure eventually resulted in the 1820 Revolution, which established a Liberal constitution, investing power in the political structures and turning Portugal into a constitutional monarchy. King John VI of Portugal returned to the continent and supported this form of government, although during his reign there were pressures from the old elites such as the multiple attempts by his son Miguel of Portugal to overthrow the established Liberal constitution.