On 15 July 1888, Delory contacted De Geyter to compose music for several
"Chants révolutionnaires" that were often sung at popular events with Lille socialists. Among these was a song that was to become the
International Workingmen's Association anthem,
The Internationale. The lyrics had been written by
Eugène Edine Pottier during the
semaine sanglante (the "bloody week", May 22–28, 1871) marking the end and the severe repression of the
Paris Commune of 1871. Until then, the song had usually been sung to the tune of the
Marseillaise. It took Pierre one Sunday morning to compose his music on a
harmonium. According to one source, he then asked his brother Adolphe to play it on the
bugle, and subsequently made some minor changes to the music. The new composition was first played by the Lyre des Travailleurs at the yearly fête of the Lille trade union of newspaper sellers in July 1888. Six thousand leaflets were printed at Pierre's favorite printing firm, Boldoduc, and sold to raise money for the socialist party in Lille. To protect his job, only «De Geyter" was named as the composer but Pierre was dismissed regardless and was subsequently blacklisted by Lille employers. He was soon reduced to performing odd jobs, such as making coffins. In 1902, he left Lille with his wife and daughter and moved to
Saint-Denis, near
Paris. In fact, Pierre De Geyter had neglected to secure copyright. As the song became ever more popular, his brother Adolphe De Geyter claimed copyright in 1901 and began to collect royalties on it. Pierre had become estranged from the socialist establishment of Lille by siding with the left-wing opponents of the Bloc National government of 1902, and with the Marxist war opponents influenced by
Bolshevism, who would later form the
communist party. In 1904, Pierre started court proceedings against Adolphe, but Gustave Delory (mayor of Lille by then) supported Adolphe's claim (though in an 1888 meeting with the Ghent socialist leader
Edward Anseele he had identified Pierre Degeyter as the author) and, as a result, Pierre was unable to prove his authorship. He lost the case in 1914. At the beginning of 1916, however, during the
First World War, Adolphe De Geyter hanged himself, leaving a note for his brother in which he acknowledged his fraud and asserted that he had been pressured by others to make the claim. Pierre, who was in unoccupied France at the time, received the letter only after the war. In 1922, the copyright verdict was reversed. == Later life ==