Marozia, born Maria and also known as Mariuccia or Mariozza (c. 890 – 937), was a Roman noblewoman who was the alleged mistress of Pope Sergius III and was given the unprecedented titles senatrix ("senatoress") and patricia of Rome by Pope John X.

Engraving depicting the wedding of Marozia and Hugh of Italy, from Francesco Bertolini, Historia de Roma.

Edward Gibbon wrote of her that the "influence of two sister prostitutes, Marozia and Theodora[1] was founded on their wealth and beauty, their political and amorous intrigues: the most strenuous of their lovers were rewarded with the Roman tiara, and their reign may have suggested to darker ages the fable of a female pope. The bastard son, two grandsons, two great grandsons, and one great great grandson of Marozia—a rare genealogy—were seated in the Chair of St. Peter." Pope John XIII was her nephew, the offspring of her younger sister Theodora. From this description, the term "pornocracy" has become associated with the effective rule in Rome of Theodora and her daughter Marozia through male surrogates.

Early lifeEdit

Marozia was born about 890. She was the daughter of the Roman consul Theophylact, Count of Tusculum, and of Theodora, the real power in Rome, whom bishop Liutprand of Cremona characterized as a "shameless whore... [who] exercised power on the Roman citizenry like a man."

At the age of fifteen, Marozia became the mistress of Theophylact's cousin Pope Sergius III, whom she knew when he was bishop of Portus. The two had a son, John (the later Pope John XI). That, at least, is the story found in two contemporary sources, the Liber Pontificalis and the Antapodosis sive Res per Europam gestae (958–62), by Liutprand of Cremona (c. 920–72). But a third contemporary source, the annalist Flodoard (c. 894–966), says John XI was brother of Alberic II, the latter being the offspring of Marozia and her husband Alberic I. Hence John too may have been the son of Marozia and Alberic I.

Marozia married Alberic I, duke of Spoleto, in 909, and their son Alberic II was born in 911 or 912. By the time Alberic I was killed at Orte in 924, the Roman landowners had won complete victory over the traditional bureaucracy represented by the papal curia. Rome was virtually under secular control, the historic nadir of the papacy.

Guy of TuscanyEdit

In order to counter the influence of Pope John X (whom the hostile chronicler Liutprand of Cremona alleges was another of her lovers), Marozia subsequently married his opponent Guy of Tuscany. Together they attacked Rome, arrested Pope John X in the Lateran, and jailed him in the Castel Sant'Angelo. Either Guy had him smothered with a pillow in 928 or he simply died, perhaps from neglect or ill treatment. Marozia seized power in Rome in a coup d'état. The following popes, Leo VI and Stephen VII, were both her puppets. In 931 she managed to impose her twenty-one years old son as pontiff, under the name of John XI.

Hugh of Arles, and deathEdit

When her husband died in 929, Marozia negotiated a marriage with his half-brother Hugh of Arles, who had been elected King of Italy. Hugh was already married, but had that marriage annulled so that Hugh and Marozia could be wed. Alberic II, Marozia's son, led the opposition to the rule of Marozia and Hugh. After deposing them in 932, at the very wedding ceremonies, Alberic II imprisoned his mother until her death. Hugh escaped the city.

Marozia would remain in prison for some 5 years before she died. Alberic II was in his turn father of Octavian, who became Pope John XII in 955. Popes Benedict VIII, John XIX, Benedict IX, and antipope Benedict X of the House of Tusculani were also Marozia's descendants. By Guy of Tuscany she had a daughter named Berta Theodora, who never married.

Family treeEdit

Theophylact I, Count of Tusculum
Hugh of Italy
(also married Marozia)
Alberic I of Spoleto
d. 925
Pope Sergius III
Alda of VienneAlberic II of Spoleto
David or DeodatusPope John XI
Gregory I, Count of TusculumPope John XII
Pope Benedict VII
Pope Benedict VIII
Pope 1012–1024
Alberic III, Count of Tusculum
d. 1044
Pope John XIX
Pope 1024–1032
Gregory II, Count of TusculumPeter, Duke of the RomansGuy/Gaius
Count of Tusculum
Count of Tusculum
Pope Benedict IX
1033–1045; 1045; 1047–1048
Gregory III, Count of Tusculum
Ptolemy I of TusculumPeter de Columna
Colonna family


  • Chamberlin, E. R. (1969). The Bad Popes.
  • Williams, George (1998). Papal genealogy, the families and descendants of the popes.
  • di Carpegna Falconieri, Tommaso (2008), Marozia, in Dizionario biografico degli italiani, 70, pp. 681–685


  1. ^ Here Gibbon (the author of the famous The History of the Decline of the Roman Empire) confused Theodora (the mother of Marozia) with Theodora (the sister of Marozia)