Leo de Benedicto Christiano, or just Benedictus Christianus, was a

Jew Jews ( he, יְהוּדִים, , ) or Jewish people are an ethnoreligious group and nation originating from the Israelites Israelite origins and kingdom: "The first act in the long drama of Jewish history is the age of the Israelites""Th ...

Trastevere Trastevere () is the 13th ''rione'' of Rome: it is identified by the initials R. XIII and it is located within Municipio I. Its name comes from Latin ''trans Tiberim'', literally 'beyond the Tiber'. Its coat of arms depicts a golden head of a lio ...

in the late eleventh century. He converted to

Christianity Christianity is an Abrahamic monotheistic religion based on the life and teachings of Jesus of Nazareth. It is the world's largest and most widespread religion with roughly 2.38 billion followers representing one-third of the global pop ...

and was

baptised Baptism (from grc-x-koine, βάπτισμα, váptisma) is a form of ritual purification—a characteristic of many religions throughout time and geography. In Christianity, it is a Christian sacrament of initiation and adoption, almost inv ...

Pope Leo IX Pope Leo IX (21 June 1002 – 19 April 1054), born Bruno von Egisheim-Dagsburg, was the head of the Catholic Church and ruler of the Papal States from 12 February 1049 to his death in 1054. Leo IX is considered to be one of the most historically ...

, whence he took his Christian name. He related himself to the ancient

patrician Patrician may refer to: * Patrician (ancient Rome), the original aristocratic families of ancient Rome, and a synonym for "aristocratic" in modern English usage * Patrician (post-Roman Europe), the governing elites of cities in parts of medieval ...

families of

Rome , established_title = Founded , established_date = 753 BC , founder = King Romulus (legendary) , image_map = Map of comune of Rome (metropolitan city of Capital Rome, region Lazio, Italy).svg , map_caption ...

by the marrying of his daughters to powerful suitors. He himself was extremely rich (probably from

usury Usury () is the practice of making unethical or immoral monetary loans that unfairly enrich the lender. The term may be used in a moral sense—condemning taking advantage of others' misfortunes—or in a legal sense, where an interest rate is ch ...

). In January 1058, as a partisan of the newly elected

Pope Nicholas II Pope Nicholas II ( la, Nicholaus II; c. 990/995 – 27 July 1061), otherwise known as Gerard of Burgundy, was the head of the Catholic Church and ruler of the Papal States from 24 January 1059 until his death in 27 July 1061. At the time of his ...

, Leo had the gates of the

Leonine City The Leonine City (Latin: ''Civitas Leonina'') is the part of the city of Rome which, during the Middle Ages, was enclosed with the Leonine Wall, built by order of Pope Leo IV in the 9th century. This area was located on the opposite side of the ...

thrown open for Godfrey, former duke of Lower Lorraine, and his wife, Beatrice, marchioness of Tuscany. Godfrey immediately possessed the

Tiber Island The Tiber Island ( it, Isola Tiberina, Latin: ''Insula Tiberina'') is the only river island in the part of the Tiber which runs through Rome. Tiber Island is located in the southern bend of the Tiber. The island is boat-shaped, approximately ...

and attacked the

Lateran 250px, Basilica and Palace - side view Lateran and Laterano are the shared names of several buildings in Rome. The properties were once owned by the Lateranus family of the Roman Empire. The Laterani lost their properties to Emperor Constantine ...

, forcing

Benedict X Benedict X (died 1073/1080), born Giovanni, was elected to succeed Pope Stephen IX on 5 April 1058, but was opposed by a rival faction that elected Nicholas II. He fled Rome on 24 January 1059 and is today generally regarded as an antipope.Mary ...

to flee on 24 January. Leo allied himself with the reformers, including

Hildebrand Hildebrand is a character from Germanic heroic legend. ''Hildebrand'' is the modern German form of the name: in Old High German it is ''Hiltibrant'' and in Old Norse ''Hildibrandr''. The word ''hild'' means "battle" and ''brand'' means "sword". ...

and

Pope Alexander II Pope Alexander II (1010/1015 – 21 April 1073), born Anselm of Baggio, was the head of the Roman Catholic Church and ruler of the Papal States from 1061 to his death in 1073. Born in Milan, Anselm was deeply involved in the Pataria refor ...

, but he was unable to dispel, through negotiations, the attack of 14 April 1062 which gave Rome to

Antipope Honorius II Honorius II ( 1010 – 1072), born Pietro Cadalo (Latin ''Petrus Cadalus''), was an antipope from 1061 to 1072. He was born in the County of Verona, and became bishop of Parma in 1045. He died at Parma in 1072. Biography Cadalo was the son of ...

. His son was

Pier Leoni Pier Leoni (or Pierleone) ( la, Petrus Leo or ) (died 2 June 1128) was the son of the Jewish convert Leo de Benedicto and founder of the great and important medieval Roman family of the Pierleoni. He was called the Jewish Crassus by Gregorovius. ...

and through him he is the father of the great

Pierleoni family The family of the Pierleoni, meaning "sons of Peter Leo", was a great Roman patrician clan of the Middle Ages, headquartered in a tower house in the quarter of Trastevere that was home to a larger number of Roman Jews. The heads of the family often ...

which dominated Roman politics for much of the

Middle Ages In the history of Europe, the Middle Ages or medieval period lasted approximately from the late 5th to the late 15th centuries, similar to the post-classical period of global history. It began with the fall of the Western Roman Empire a ...

. So far as one can tell, he lived in peace with the Roman people and the pontiff, but his grandson, who was elevated to the papacy as

Antipope Anacletus II Anacletus II (died January 25, 1138), born Pietro Pierleoni, was an antipope who ruled in opposition to Pope Innocent II from 1130 until his death in 1138. After the death of Pope Honorius II, the college of cardinals was divided over his succ ...

, was lambasted for his Hebrew ancestry; as was another grandson,

Jordan Jordan ( ar, الأردن; tr. ' ), officially the Hashemite Kingdom of Jordan,; tr. ' is a country in Western Asia. It is situated at the crossroads of Asia, Africa, and Europe, within the Levant region, on the East Bank of the Jordan Rive ...

, who was elected patrician of the

Commune of Rome The Commune of Rome ( it, Comune di Roma) was established in 1144 after a rebellion led by Giordano Pierleoni. Pierleoni led a people's revolt due to the increasing powers of the Pope and the entrenched powers of the nobility. The goal of the r ...

and became also an enemy of the legitimate popes.

Sources

* Gregorovius, Ferdinand. ''Rome in the Middle Ages Vol. IV Part 1''. 1905. Converts to Roman Catholicism from Judaism Italian Roman Catholics 11th-century Italian Jews People of medieval Rome {{Italy-noble-stub