20-N

The second date, 39 years later, is 20 November 1975, when Generalísimo Franco – aged 82, and having ruled Spain for close to four decades as its dictator, or as he called himself, caudillo (Spanish for leader) – died in bed following a lengthy illness. The date continues to be commemorated by far-right groups which mark it by organizing public demonstrations.

Other incidents

• In a startling coincidence, the same day also proved to be fatal to Primo de Rivera's political opposite, 40-year-old Buenaventura Durruti, a key leader of Spain's two largest anarchist organizations, Federación Anarquista Ibérica (Iberian Anarchist Federation) and the anarcho-syndicalist trade union Confederación Nacional del Trabajo (National Confederation of Labor). Durruti's death occurred, according to his chauffeur, in the midst of distant gunfire in the trenches of Madrid.
• The Spanish general election on November 20, 2011 coincided with the 75th anniversary of Primo de Rivera's execution and the 36th anniversary of Franco's death.
• November 20 is also the anniversary of the assassination of Basque nationalist politicians Santiago Brouard, murdered in 1984, and Josu Muguruza, assassinated in 1989. In both cases it is believed that the date of the assassination was symbolically chosen to coincide with 20-N.