The assassination of the King of Yugoslavia, Alexander Ist by Croatian terrorists during a state visit to Marseilles on 9 October 1934 is commemorated by a modest plaque on the Canebière and a little known monument outside the Préfecture. Although the histories of the period cite the event in passing, it is treated as a footnote in the political history of France and has been all but erased from the memory of the city. While there are good reasons for forgetting the episode – regicide does no favours for the reputation of a host nation or city and the French Foreign Minister Louis Barthou was accidentally shot by the French police – the double killing had multiple ramifications for France's interior and foreign affairs during the rise of fa...