principality · Italy

Principality of Piombino

1399 CE – 1805 CE · capital Piombino

A small Tuscan coastal state with the iron mines of Elba, ruled by the Appiani and later the Ludovisi and Boncompagni.

Origins

In 1399 Gherardo Appiani, lord of Pisa, sold the city to Gian Galeazzo Visconti but kept Piombino, Elba and nearby islands as his own lordship. His family ruled it as lords and, from 1594, as imperial princes.

Rule and society

Piombino controlled the iron mines of Elba and the channel between Elba and the mainland, a strategic route for Mediterranean shipping. Its small size made it dependent on stronger powers: Cosimo I de' Medici built Portoferraio on Elba in 1548, and Spain later held Porto Longone. After the Appiani died out, the principality passed to the Ludovisi in 1634 and then to the Boncompagni-Ludovisi.

Decline and legacy

In 1805 Napoleon gave Piombino to his sister Elisa, merging it into the Principality of Lucca and Piombino. In 1815 the Congress of Vienna gave it to the Grand Duchy of Tuscany.

Lineage

Connections (1)

  • Principality of Piombino was a protectorate of Spanish Empire1557 CE – 1708 CE

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Cite this page
APA
The Epoch Institute. (2026). Principality of Piombino. In The Epoch Institute States Register. https://the-epoch-institute.org/state/principality-of-piombino
MLA
“Principality of Piombino.” The Epoch Institute States Register, The Epoch Institute, 2026, https://the-epoch-institute.org/state/principality-of-piombino. Accessed .
Chicago
The Epoch Institute. “Principality of Piombino.” The Epoch Institute States Register. 2026. https://the-epoch-institute.org/state/principality-of-piombino.
Harvard
The Epoch Institute (2026) ‘Principality of Piombino’, The Epoch Institute States Register. Available at: https://the-epoch-institute.org/state/principality-of-piombino (Accessed: ).

Last reviewed October 2026Random state ↻