The Portella della Ginestra Massacre: Blood on the May Day Plateau

Editorial Note: This article is part of the historical and archival collection of mafiasiciliana.com, a portal dedicated to the independent study of organized crime, the historical memory of its victims, political-criminal collusion, and the complex foundational era of post-war Sicily.

Long before the high-tech car bombings of the 1990s or the global cocaine and heroin cartels redefined modern syndicates, Sicilian organized crime was deeply intertwined with feudal land politics, agrarian reactionary forces, and state-sanctioned anti-communism.

Among the darkest chapters of this violent post-World War II era is the Portella della Ginestra Massacre, perpetrated on May 1, 1947, where innocent rural workers celebrating International Workers’ Day were ambushed and gunned down in a mountain pass near Piana degli Albanesi.

Key Profile Data

• Date: May 1, 1947
• Location: Portella della Ginestra mountain pass (between Piana degli Albanesi and San Giuseppe Jato, Palermo province)
• Perpetrators: Salvatore Giuliano’s bandit gang, acting in collusion with agrarian landlords, reactionary politicians, and mafia bosses
• Casualties: 11 dead (including men, women, and children) and dozens severely wounded

1. The Historical Context: Land, Politics, and Post-War Sicily

In the immediate aftermath of World War II, rural western Sicily was a powder keg. The vast feudal estates (latifondi) owned by wealthy landowners were fiercely contested by impoverished agricultural workers (contadini) and peasant cooperatives led by socialist and communist peasant leagues. These laborers demanded the implementation of the Gullo Decrees—which granted peasants the right to farm uncultivated lands—and a fundamental redistribution of wealth.

Local mafia bosses, who traditionally acted as armed enforcers for the aristocratic landowners to suppress labor unions and union organizers, viewed this peasant mobilization as an existential threat to their economic and social control.

2. The Massacre: May 1, 1947

On the morning of May 1, 1947, over two thousand men, women, and children from Piana degli Albanesi, San Giuseppe Jato, and surrounding towns gathered peacefully on the sun-drenched plateau of Portella della Ginestra to celebrate Labor Day, enjoy local music, and listen to speeches calling for agrarian reform.

As the crowd settled into the valley, a notorious local separatist bandit and criminal warlord, Salvatore Giuliano, and his armed gang positioned themselves on the surrounding rocky ridges of Monte Pizzuta.

The Ambush

Without warning, Giuliano’s men opened sustained rifle and machine-gun fire directly into the dense, defenseless crowd. Panic ensued instantly. Trapped in an open basin with limited escape routes, victims were cut down as they tried to flee or shield their children.

The Casualties

Eleven people were killed on the spot or died of their wounds shortly thereafter, among them young children and elderly workers:

1. Margherita Clesi (43)
2. Giorgio Clesi (7)
3. Vincenzo Di Salvo (45)
4. Giovanni Grifò (18)
5. Filippo Greco (37)
6. Giuseppe Grimaldi (27)
7. Vincenzo La Fata (8)
8. Matteo Pallacino (31)
9. Giovanni Megna (18)
10. Serafino Lascari (44)
11. Giuseppe Di Maggio (valiant local participant who died later)

Dozens of other attendees sustained severe, permanent injuries.

3. The Enigma of Collusion: Who Ordered the Shootings?

The official judicial narrative and subsequent trials attributed the massacre exclusively to Salvatore Giuliano and his criminal band, painting it as an isolated act of rogue banditry. Giuliano himself claimed he only wanted to “frighten” the crowd to support his bizarre political agenda of annexing Sicily to the United States.

However, historians, independent investigators, and surviving victims always pointed to a deeper, darker conspiracy:

• The Reactionary Alliance: The massacre occurred just weeks after the April 1947 Sicilian regional elections, which saw a major victory for the leftist Blocco del Popolo (Popular Bloc). Landowners, conservative politicians terrified of a communist takeover, and high-ranking mafia bosses had strong motives to violently intimidate the agrarian movement.
• The Mysterious Silence: Decades later, evidence emerged suggesting that Giuliano had been promised amnesty and protection by shadowy anti-communist figures in exchange for executing the attack. Shortly before he was scheduled to testify in court, Giuliano was mysteriously shot and killed in his bed in July 1950 by his lieutenant, Pisciotta (who himself was later poisoned in prison by a cup of coffee laced with strychnine).

4. Legacy: The Birthplace of State-Mafia Collusion

Portella della Ginestra stands as the foundational trauma of modern democratic Italy. It exposed the horrific reality that post-war political violence was not merely the work of common outlaws, but the product of a lethal nexus uniting agrarian wealth, political conservatism, organized crime, and corrupt elements within the state apparatus.

Today, the windswept mountain pass is a protected national memorial site adorned with rough-hewn stone monuments inscribed with the names of the victims, serving as an annual pilgrimage point for the defense of labor rights, democracy, and historical memory.