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.
Flag of Portugal
Despite the end of the United Kingdom of Portugal, Brazil and the Algarves, when Brazil became independent in 1822, its coat of arms continued to be used, inclusive in flags, until the death of John VI in 1826. From then on, the previous coat of arms, without the armillary sphere, became in use again.