Lisbon Regicide led the ceremonies by placing flowers on the site where the assassination had taken place and celebrated a mass in their memory at the Church of São Vicente de Fora (where they are buried). During the centenary year many artistic, cultural, and historic events took place in honor of King Carlos I and the royal family, and several books on the subject were published. Lisbon Regicide The Lisbon Regicide () was the murder of King Carlos I of Portugal and the Algarves and his heir-apparent, Luís Filipe, Prince Royal of Portugal, by assassins sympathetic to Republican interests and aided by
Lisbon Regicide of the administrative dictatorship. Initially hesitant, the republicans proposed a pact between them and the regime; later, at their national congress in Setúbal (24–25 April 1909) they decided to forcibly seize power. The initial hesitation was due to the party's structure; the Republican Party was a collection of disenfranchised interests, political movements and dissident groups. Some Republicans were sincerely shocked by the regicide, even if it meant regime change. Rural conservatives were afraid of the effects of such actions on their British allies. However, the Republican Party could not turn its back on its supporters: the youth of Lisbon, already