Catalonia marks 2026 Diada with 50th Sant Boi anniversary and decentralized rallies

Institutional events and parliamentary millennium

The official commemorations for the Diada on 11 September 2026 mark 50 years since the 1976 gathering in Sant Boi de Llobregat, the first mass Diada permitted following the Franco dictatorship. On 10 September, Parliament President Josep Rull opened the program by raising the senyera at the Catalan Parliament, inaugurating a commemoration of the millennium of Catalan parliamentary tradition. This initiative commemorates the Peace and Truce of God assemblies established in 1027 and runs through 10 December 2027.

The parliamentary event brought together Generalitat President Salvador Illa, Barcelona Mayor Jaume Collboni, cabinet ministers, and party representatives from the PSC, Junts, ERC, the PP, and Comuns. Former regional presidents José Montilla and Pere Aragonès also attended. Actor Lluís Soler recited a text by poet Jaume Coll Mariné, accompanied by musical performances directed by Jordi Savall with soloists from La Capella Reial de Catalunya and Hespèrion XXI. Former president Artur Mas did not attend, traveling instead to Waterloo to meet former president Carles Puigdemont.

Government campaign and outreach in Extremadura

The Generalitat administration led by Salvador Illa focused its institutional campaign on civic diversity and social cohesion. The official graphic design by Javier Jaén features hundreds of individual fingerprints forming the Catalan flag, drawing on the legend of Guifré el Pilós.

Artist Javier Jaén explained the concept behind the official poster.

It represents how each of us makes this flag; it is not something individual so much as collective.

Government spokeswoman Sílvia Paneque outlined the administration's goal for the commemorations.

We want this to be a Diada that is an exhibition of plurality, but also of what we share as a country.

The central institutional gala takes place on the evening of 11 September at the National Theatre of Catalonia, featuring performances by Sopa de Cabra, Guillem Roma, Jordi Corominas, the Colla Sardanista Mare Nostrum, and the Coral Renaixença. In addition, Illa scheduled a two-day official visit to Extremadura, home region to more than 100,000 residents living in Catalonia and their descendants. His itinerary includes an event at the El Emigrante monument in La Zarza, an institutional act in Mérida, a screening of the film "El 47", and a meeting with Extremaduran PSOE general secretary Álvaro Sánchez Cotrina.

Independence marches and political divisions

Civil society groups Assemblea Nacional Catalana and Òmnium Cultural organized decentralized demonstrations starting at 17:14 across Barcelona, Girona, and Amposta. In Barcelona, two separate columns named "past" and "future" were routed over shorter distances than in earlier years. The mobilization follows a turnout of 28,000 people at the 2025 Diada, while a July survey by the Centre d'Estudis d'Opinió placed support for independence at 45%.

The pro-independence political sphere faces ongoing fragmentation alongside legal developments surrounding the 2024 amnesty law. The Court of Justice of the European Union endorsed the statute, leaving Puigdemont's prospective return dependent on pending appeals before Spain's Constitutional Court. Meanwhile, far-right pro-independence party Aliança Catalana, led by Ripoll mayor Sílvia Orriols, has gained ground in recent opinion polls despite holding only two parliamentary seats.

Tensions escalated around a demonstration called by Aliança Catalana at the Fossar de les Moreres in Barcelona. Left-wing pro-independence and antifascist organizations staged a counter-protest at the site. The Mossos d'Esquadra intervened to separate the opposing groups, conducting police charges and making two arrests.