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
Killing field of fire. Such a term may be used to describe the approaches to an "ideal" defensive fortification. An example of a killing field would be the exposed beaches in front of the seawall at Normandy. The term originated in medieval warfare to describe clear areas outside of a castle's walls such as pastures or specifically cleared fields where enemy soldiers could be easily and methodically killed in large numbers by ranged weapons. It also refers to areas within castles specially designed to bunch attackers who had breached the outer defenses into an area where the defenders could kill them easily