Papal States Kingdom of Naples
Duchy of Sora Kingdom of Italy
Founded
1133
Founder
Rodolfo Boncompagni
Titles
Pope (non-hereditary)
Duke of Sora
Duke of Arce
Lord of Arpino
Prince of Piombino
Lord of Aquino
Duke of Fiano
Duke of Monterotondo
Marquis of Vignola
Marquis of Populonia
Deposition
1796 (from Sora) 1801 (from Piombino)
Cadet branches
Boncompagni-Ludovisi
The House of Boncompagni is a princely family of the Italian nobility which settled in Bologna in around the 14th century, but was probably originally from Umbria.[1]
In 1572 Ugo Boncompagni was elected pope, taking the name Gregory XIII, and the family prospered. In 1579, the pope bought the Duchy of Sora from the Della rovere family for his son Giacomo, whose descendants reigned there as dukes until 1796. Later they also obtained the Principality of Piombino, following the marriage of Gregorio II Boncompagni with Ippolita Ludovisi, princess of Piombino and last of her dynasty. They reigned over Piombino as Boncompagni-Ludovisi, until Antonio II Boncompagni Ludovisi was deposed as Prince of Piombino in 1801;[1] the heads of the family, though no longer reigning, continued to be known as "Prince [forenames] Boncompagni Ludovisi" as of 2023.[2]
^ ab"BONCOMPAGNI e BONCOMPAGNI-LUDOVISI in "Enciclopedia Italiana"". www.treccani.it (in Italian). Retrieved 2021-10-23.
^Giuffrida, Angela (14 January 2023). "US-born princess vows to stay in Rome villa despite eviction order". The Guardian.
The House of Boncompagni is a princely family of the Italian nobility which settled in Bologna in around the 14th century, but was probably originally...
Giandomenico Boncompagni (13 May 1932 – 16 April 2017), best known as Gianni Boncompagni, was a television and radio presenter, director, writer and a...
XIII; Italian: Gregorio XIII; 7 January 1502 – 10 April 1585), born Ugo Boncompagni, was head of the Catholic Church and ruler of the Papal States from 13...
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Antonio II Boncompagni Ludovisi (1735–1805) was VIII Duke of Sora and the Prince of Piombino, Marquis of Populonia, Prince of Venosa and Count of Conza...
Francesco Boncompagni Ludovisi (20 October 1886 – 7 June 1955), Prince of Piombino (heir of a former Sovereign Italian State) was an Italian politician...
Giacomo Boncompagni (also Jacopo Boncompagni; 8 May 1548 – 18 August 1612) was an Italian feudal lord of the 16th century, the illegitimate son of Pope...
Margherita of Savoy, who lived there from 1900 to 1926. In 1885, the Boncompagni-Ludovisi family chose to sell their ancestral family home in response...
Casino di Villa Boncompagni Ludovisi is a historical building in Rione Ludovisi, Rome, Italy. The building is located in the former domain Villa Ludovisi...
Boncompagni Ludovisi Decorative Arts Museum (Museo Boncompagni Ludovisi per le arti decorative, often abbreviated as the Museo Boncompagni), Rome, is the...
Francesco Boncompagni (21 January 1592 – 9 December 1641) was an Italian Cardinal, made cardinal in 1621. Born at Sora, son of Giacomo Boncompagni, duke of...
Gaetano I Boncompagni Ludovisi (1706–1777) was VII Duke of Sora and the Prince of Piombino, Marquis of Populonia, Prince of Venosa and Count of Conza...
Pietro Corcos Boncompagni (1592–1664) was a member of the branch of the historic Jewish Roman family that embraced Christianity, in the person of Solomon...
Gregorio II Boncompagni (7 July 1642 – 1 January 1707) was an Italian nobleman and the 5th Duke of Sora. He was the grand-nephew of Pope Gregory XIII...
Carlo Bon Compagni, Count of Mombello (Turin, 25 July 1804 – Turin, 14 December 1880) was an Italian judge, educator and politician. Bon Compagni served...
Maria Eleonora I Boncompagni (1686–1745) was the Princess of Piombino, Marchioness of Populonia, Princess of Venosa and Countess of Conza, Lady di Scarlino...
Pierre "Pagnibon" Boncompagni (19 May 1913 – 7 June 1953) was a French racing driver, best remembered for winning the 1951 Tour de France Automobile....
Antonio I Boncompagni (10 April 1658 – 28 January 1731) was an Italian nobleman and the 6th Duke of Sora. By his marriage, he also was Prince-Consort...
Cardinal Filippo Boncompagni (1572), nephew of Cardinal Francesco Boncompagni (1621) and uncle of another Cardinal Girolamo Boncompagni, archbishop of Bologna...
Prince Baldassarre Boncompagni-Ludovisi (10 May 1821 – 13 April 1894), was an Italian historian of mathematics and aristocrat. Boncompagni was born in Rome...
the powerful House of Sforza and by marriage member of the House of Boncompagni. Costanza was daughter of Sforza Sforza, 10th Count di Santa Fiora (1520–1575)...
Later it was part of the Duchy of Sora, becoming a ducal seat under the Boncompagni family. In 1796 it was annexed to the Papal States. It was once in the...
Global Information
Papal States 
Kingdom of Naples 
Duchy of Sora 
Kingdom of Italy