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
Letters on a Regicide Peace Letters on a Regicide Peace Letters on a Regicide Peace or Letters ... on the Proposals for Peace with the Regicide Directory of France were a series of four letters written by Edmund Burke during the 1790s in opposition to Prime Minister William Pitt's seeking of peace with the revolutionary French Directorate. It was completed and published in 1796. By January 1796, Burke was finishing his "Letter on a Regicide Peace", and parts of it were already printed. However, the work was delayed and it was published 20 October 1796, together with the second letter, as "Two Letters on a