He wrote the book and political manifesto La nacionalitat catalana in which greater autonomy to Catalonia was advocated.

Enric Prat de la Riba i Sarrà was born on 29 November 1870 in Castellterçol, to an affluent Roman Catholic conservative family.

He became an important member of the cultural and political organization Unió Catalanista, in which he wrote some of its most relevant manifestos, among them is the famous Missatge al Rei dels Hel·lens [ca] in 1897.

Since 1899, he promoted Catalan nationalism in politics, at first as a member of the Centre Nacional Català [ca] and later in the Regionalist League of Catalonia.

The Regionalist League was a right-wing Catalan political party established in 1901 by Prat de la Riba.