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
Henry Marten (regicide) rather the inaction of the House of Lords, he was spared the death penalty, but he remained a captive. Having escaped the death penalty for his involvement in the regicide Marten was sent into internal exile, first in the far north of England and then (1665) to Windsor Castle, where he remained until Charles II ordered him to be moved away from such close proximity to himself. In 1668 Marten was sent to Chepstow, in Wales. Marten's imprisonment there lasted some twelve years but does not appear to have been unduly arduous, at least at first; he had a suite