Iacopo III Appiani was Prince of Piombino

Principality of Piombino

The Principality of Piombino was a state of Italy, which existed from 1399 to 1805, when Napoleon absorbed it into the Principality of Lucca and Piombino...

 of the Appiani dynasty in the Renaissance.

He was born in Pisa

Pisa

Pisa is a city in Tuscany, Central Italy, on the right bank of the mouth of the River Arno on the Tyrrhenian Sea. It is the capital city of the Province of Pisa...

, the son of Iacopo I Appiani, and followed his brother Gherardo

Gherardo Appiani

Gherardo Appiani was the lord of Piombino from 1398 until his death.He was born in Pisa, the son of Iacopo I Appiani. He was lord of that city from 1398 until 1399, obtaining the lordship of Piombino in 1398 in exchange of Pisa, sold to Gian Galeazzo Visconti for 200,000 florins...

 to Piombino

Piombino

Piombino is an Italian town and comune of circa 35,000 inhabitants in the province of Livorno . It lies on the border between the Ligurian Sea and the Tyrrhenian Sea, in front of Elba Island and at the northern side of Maremma.-Overview:...

 when he became lord of the Tuscan

Tuscany

Tuscany is a region in Italy. It has an area of about 23,000 square kilometres and a population of about 3.75 million inhabitants. The regional capital is Florence ....

 city. When Gherardo died, he remained in the court but the lordship was inherited by his son Iacopo II

Iacopo II Appiani

Iacopo II Appiani was the lord of Piombino from 1405 until 1441.He was born in Piombino, the son of Gherardo Appiano, whom he succeeded in 1405, remaining under the regency of his mother Paola Colonna until coming of age...

, under the tutorage his mother Paola Colonna

Paola Colonna

Paola Colonna was the lady of Piombino from 1441 until 1445.She was born in Rome into one of the most powerful family of Rome. Her brother Giordano was shortly Prince of Salerno and Duke of Venosa, while her brother Oddo would become Pope Martin V. On June 18, 1396 she was married to Gherardo...

.

When Iacopo II died, despite Emanuele was the last living Appiani male, she kept the seigniory, thanks to the support of her son-in-law, the condottiero Rinaldo Orsini

Rinaldo Orsini

Rinaldo Orsini was an Italian condottiero, a member of the Orsini family.In 1426 he fought for the Pope against the Colonna family. In 1442 he was hired by the Republic of Siena, and in 1445 he became lord of Piombino and Isola d'Elba through his marriage with Caterina Appiani...

. When Paola died, the latter inherited the title under his daughter Caterina Appiani

Caterina Appiani

Caterina Appiani was a lady of Piombino of the Appiani dynasty from 1445 until her death.She was born at Piombino, the first daughter of Gherardo Appiani, lord of that principality. She succeeded her mother Paola Colonna thanks to the army of her husband, the condottiero Rinaldo Orsini, whom she...

. In reply Emanuele married in 1445 to Colia de' Giudici, illegitimate daughter of King Alfonso V of Naples

Alfonso V of Aragon

Alfonso the Magnanimous KG was the King of Aragon , Valencia , Majorca, Sardinia and Corsica , and Sicily and Count of Barcelona from 1416 and King of Naples from 1442 until his death...

, who marched to Piombino with an army. Orsini died of plague, followed soon afterwards by Caterina, and Emanuele could enter Piombino in 1452 after being elected lord by the city's Elders.

He died at Piombino in 1474, being succeeded by his son Iacopo.