The Lisbon Regicide (Portuguese: O Regicídio de 1908) was the name given for the assassinations of King Carlos I of Portugal and his heir-apparent, Prince Royal Luís Filipe (Duke of Braganza), by assassins sympathetic to republican interests and aided by elements within the Portuguese Carbonária, disenchanted politicians and anti-monarchists. The events occurred on 1 February 1908 in the Praça do Comércio along the banks of the Tagus River in Lisbon, commonly referred to by its antiquated name: the Terreiro do Paço (or Palace Courtyard).
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