Carbonária

Portuguese secret society

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June 17, 2026

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The Carbonária was a Portuguese republican secret society that played a significant role in the overthrow of the monarchy and the establishment of the First Portuguese Republic in 1910. While its origins are debated, it is believed to have emerged in the late 19th century, possibly influenced by earlier Italian secret societies like the Carbonari.

The society's members, often drawn from the middle classes and military, were united by their opposition to the constitutional monarchy, which they viewed as corrupt and ineffective. The assassination of King Carlos I and his heir in 1908, an act potentially linked to the Carbonária, created a power vacuum and fueled republican sentiment.

Led by figures like Ant\u00f3nio Machado Santos, the Carbonária organized an armed uprising in October 1910. This revolution, supported by civilians, soldiers, and naval forces, led to the abdication of King Manuel II and the proclamation of the Portuguese Republic on October 5, 1910.12

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…hidden organization such as the Carbonária, a republican secret society, the killings were applauded by the republicans, who immediately began their preparations for a final attack on the monarchy.
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…hidden organization such as the Carbonária, a republican secret society, the killings were applauded by the republicans, who immediately began their preparations for a final attack on the monarchy.
Read More