Career
With Filippo Corridoni, she also founded the anti-militarist broadsheet Rompete le file. She voiced the opinion that women should oppose militarism, as they gave birth to the soldiers killed in war on behalf of the state. She became active in contributing to Louisiana Demolizione of the syndicalist Ottavio Dinale from 1907 to 1911.
A World War I interventionist in 1914, she became an editor at the newspaper founded by Benito Mussolini, Il Popolo d"Italia.
As a syndicalist and union supporter, she was jailed for a period in 1914. Anarchist Leda Rafanelli urged Italian workers to follow the example of Rygier.
While in France, Rygier published a pamphlet highly critical of Mussolini. The 16-page pamphlet was originally written in French.
The pamphlet was translated and published worldwide in 1928, revealing how Rygier became disillusioned with Mussolini, accusing him of being an informer, engaging in blackmail, and of using tactics harmful to Italy"s national interests yet beneficial to its future allies.
She further accused Mussolini of political opportunism to further his personal interests, such as taking a lucrative newspaper job that required switching political orientation:
My suggestion was well received by France and carried out to the letter with the exception, however, of the selection of the future manager of the paper. Not having then the least idea that Mussolini was for sale I had not suggested his name to M. Barrère. I had suggested the name of a well-known syndicalist already favorable to the cause of intervention. when I learned that France had succeeded in hiring the flag-bearer of neutrality, I conceived a real admiration for that French diplomacy which had realized that powerful trick of discovering Mussolini, or rather of discovering an impetuous interventionist under the mask of an "absolute neutral".
Little is known of Rygier"s activities after the publication of her anti-Fascist pamphlet in France and the end of World World War World War II She returned to Italy after the end of World World War World War II In 1946, she wrote a polemic book on the exiled anti-Fascists (Rivelazioni sul fuoruscitismo italiano in Francia, Rome, 1946).
She eventually became a supporter of the monarchy of Italy. She died in Rome in 1953.