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.
Kingdom of Kongo
From c. 1390 to 1857 it was mostly an independent state. From 1857 to 1914 it functioned as a vassal state of the Kingdom of Portugal. In 1914, following the Portuguese suppression of a Kongo revolt, Portugal abolished the titular monarchy. The remaining territories of the kingdom were assimilated into the colony of Angola and the Protectorate of Cabinda respectively. The modern-day Bundu dia Kongo sect favors reviving the kingdom through secession from Angola, the Republic of the Congo, the Democratic Republic of the Congo, and Gabon.