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.
Pedro I of Brazil
A few months later, the Emperor received word that his father had died on 10 March 1826, and that he had succeeded his father on the Portuguese throne as King Dom Pedro IV. Aware that a reunion of Brazil and Portugal would be unacceptable to the people of both nations, he hastily abdicated the crown of Portugal on 2 May in favor of his eldest daughter, who became Queen Dona Maria II. His abdication was conditional: Portugal was required to accept the Constitution which he had drafted and Maria II was to marry his brother Miguel. Regardless of the abdication, Pedro I continued to act as an absentee king of Portugal and interceded in its diplomatic matters, as well as in internal affairs, such as making appointments. He found it difficult, at the very least, to keep his position as Brazilian emperor separate from his obligations to protect his daughter's interests in Portugal.