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.
Secret Convention on the Transfer of the Portuguese monarchy to Brazil
The Secret Convention on the Transfer of the Portuguese monarchy to Brazil was an international treaty between Portugal and Britain on October 22, 1807, also called "secret Convention on the transfer to Brazil of the seat of the Portuguese monarchy and temporary occupation of Madeira Island by British troops. " It was signed in London, taking place in the context of the Napoleonic wars. More specifically, it was agreed a few days before the first invasion of Portugal in the Peninsular War, when the Napoleonic troops were already approached the Portuguese borders through Spanish territory. Later, the Portuguese aspirations became reality with the support of the British navy during the transfer of the Portuguese court to Brazil, and Portugal complied to the British requirements by opening the Brazilian ports to their goods.