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 Floor (Howlin' Wolf song) Floor, took their name from the song's title. Killing Floor (Howlin' Wolf song) "Killing Floor" is a 1964 song by American blues singer-songwriter and guitarist Howlin' Wolf. Called "one of the defining classics of Chicago electric blues", "Killing Floor" has been recorded by various artists and has been acknowledged by the Blues Foundation Hall of Fame. Howlin' Wolf recorded "Killing Floor" in 1964 and it was released as a single. According to blues guitarist and longtime Wolf associate Hubert Sumlin, the song refers to male-female relationships: "Down on the killing floor – that means a woman has you down, she