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.
List of monarchs of Brazil
Before 1815, Brazil was a colony of the Kingdom of Portugal. Thus, from the formal arrival of the Portuguese in 1500, when the land was claimed by the Portuguese Crown, until 1815 when the Kingdom of Brazil was created and the colonial bond was formally terminated and replaced by a political union with Portugal, the Kings of Portugal were monarchs "over" Brazil.