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.
Monarchy of the North
The Monarchy of the North (), officially the Kingdom of Portugal (), was a short-lived revolution and monarchist government that occurred in the North of Portugal, in early 1919. The movement, also known as the Kingdom of Traulitânia (), based in Porto, lasted from 19 January to 13 February 1919.