The gens Didia, or Deidia, as the name is spelled on coins, was a

plebeian In ancient Rome, the plebeians (also called plebs) were the general body of free Roman citizens who were not patricians, as determined by the census, or in other words "commoners". Both classes were hereditary. Etymology The precise origins o ...

family at

ancient Rome In modern historiography, ancient Rome refers to Roman civilisation from the founding of the city of Rome in the 8th century BC to the collapse of the Western Roman Empire in the 5th century AD. It encompasses the Roman Kingdom (753–50 ...

, which first appears in history during the final century of the Republic. According to

Cicero Marcus Tullius Cicero ( ; ; 3 January 106 BC – 7 December 43 BC) was a Roman statesman, lawyer, scholar, philosopher, and academic skeptic, who tried to uphold optimate principles during the political crises that led to the est ...

, they were .

Titus Didius Titus Didius (also spelled Deidius in ancient times) was a politician and general of the Roman Republic. In 98 BC he became the first member of his family to be consul. He is credited with the restoration of the Villa Publica,Makin, Ena. "The T ...

obtained the

consulship A consul held the highest elected political office of the Roman Republic ( to 27 BC), and ancient Romans considered the consulship the second-highest level of the '' cursus honorum'' (an ascending sequence of public offices to which polit ...

in 98 BC, a dignity shared by no other Didii until imperial times.''Dictionary of Greek and Roman Biography and Mythology'', vol. I, p. 1004 ("

Didia Gens The gens Didia, or Deidia, as the name is spelled on coins, was a plebeian family at ancient Rome, which first appears in history during the final century of the Republic. According to Cicero, they were . Titus Didius obtained the consulship in ...

").

Origin

The nomen ''Didius'' or ''Deidius'' is of uncertain origin. It resembles a class of gentilicia formed from

cognomina A ''cognomen'' (; plural ''cognomina''; from ''con-'' "together with" and ''(g)nomen'' "name") was the third name of a citizen of ancient Rome, under Roman naming conventions. Initially, it was a nickname, but lost that purpose when it became here ...

ending in ''-idus'', but might be derived from a cognomen ''Dida''. Chase classifies it among those gentilicia that either originated at Rome, or cannot be shown to have come from anywhere else. However, Olli Salomies has documented several examples of ''Diidiis'' used as a family name amongst the Oscans.

Praenomina

The earlier Didii used the

praenomina The ''praenomen'' (; plural: ''praenomina'') was a personal name chosen by the parents of a Roman child. It was first bestowed on the '' dies lustricus'' (day of lustration), the eighth day after the birth of a girl, or the ninth day after the bir ...

'' Sextus'', ''

Titus Titus Caesar Vespasianus ( ; 30 December 39 – 13 September 81 AD) was Roman emperor from 79 to 81. A member of the Flavian dynasty, Titus succeeded his father Vespasian upon his death. Before becoming emperor, Titus gained renown as a mili ...

'', and ''

Gaius Gaius, sometimes spelled ''Gajus'', Kaius, Cajus, Caius, was a common Latin praenomen; see Gaius (praenomen). People *Gaius (jurist) (), Roman jurist *Gaius Acilius *Gaius Antonius *Gaius Antonius Hybrida *Gaius Asinius Gallus *Gaius Asinius Pol ...

'', to which later members of the family added ''

Quintus Quintus is a male given name derived from '' Quintus'', a common Latin forename (''praenomen'') found in the culture of ancient Rome. Quintus derives from Latin word ''quintus'', meaning "fifth". Quintus is an English masculine given name a ...

'', '' Aulus'', and ''

Lucius Lucius ( el, Λούκιος ''Loukios''; ett, Luvcie) is a male given name derived from ''Lucius'' (abbreviated ''L.''), one of the small group of common Latin forenames (''praenomina'') found in the culture of ancient Rome. Lucius derives from L ...

''. All of these were common throughout Roman history.

Branches and cognomina

None of the Didii mentioned during the Republic is known to have borne a cognomen. A number of surnames are found under the Empire, of which the only one that appears to be a family name is ''Gallus''. This cognomen, referring to a cockerel, belongs to an abundant class of cognomina derived from the names of everyday objects and animals. The same surname could also refer to a

Gaul Gaul ( la, Gallia) was a region of Western Europe first described by the Romans. It was inhabited by Celtic and Aquitani tribes, encompassing present-day France, Belgium, Luxembourg, most of Switzerland, parts of Northern Italy (only durin ...

, indicating someone of Gaulish descent, or whose appearance or character resembled that of a Gaul.

Members

* Sextus Didius, the grandfather of Titus Didius, the consul of 98 BC. * Titus Didius Sex. f.,

tribune of the plebs Tribune of the plebs, tribune of the people or plebeian tribune ( la, tribunus plebis) was the first office of the Roman state that was open to the plebeians, and was, throughout the history of the Republic, the most important check on the power o ...

in 143 BC, was probably the author of the

sumptuary law Sumptuary laws (from Latin ''sūmptuāriae lēgēs'') are laws that try to regulate consumption. ''Black's Law Dictionary'' defines them as "Laws made for the purpose of restraining luxury or extravagance, particularly against inordinate expendi ...

, ''lex Didia'', which was binding on all of Italy, in contrast with the ''lex Fannia'' of 161, which had no power except in the city of Rome. He is probably the same Titus Didius who was sent as

praetor Praetor ( , ), also pretor, was the title granted by the government of Ancient Rome to a man acting in one of two official capacities: (i) the commander of an army, and (ii) as an elected ''magistratus'' (magistrate), assigned to discharge vario ...

against the revolted slaves in

Sicily (man) it, Siciliana (woman) , population_note = , population_blank1_title = , population_blank1 = , demographics_type1 = Ethnicity , demographics1_footnotes = , demographi ...

, about 138. * Gaius Didius C. f., a senator in 129 BC. * Titus Didius T. f. Sex. n., as praetor in 100 BC, triumphed over the

Scordisci The Scordisci ( el, Σκορδίσκοι) were a Celtic Iron Age cultural group centered in the territory of present-day Serbia, at the confluence of the Savus (Sava), Dravus (Drava), Margus (Morava) and Danube rivers. They were historically n ...

;

consul Consul (abbrev. ''cos.''; Latin plural ''consules'') was the title of one of the two chief magistrates of the Roman Republic, and subsequently also an important title under the Roman Empire. The title was used in other European city-states th ...

in 98, he and his colleague passed the '' lex Caecilia Didia''. Afterwards

proconsul A proconsul was an official of ancient Rome who acted on behalf of a consul. A proconsul was typically a former consul. The term is also used in recent history for officials with delegated authority. In the Roman Republic, military command, or ' ...

Spain , image_flag = Bandera de España.svg , image_coat = Escudo de España (mazonado).svg , national_motto = '' Plus ultra'' ( Latin)(English: "Further Beyond") , national_anthem = (English: "Royal March") , ...

, he triumphed over the

Celtiberians The Celtiberians were a group of Celts and Celticized peoples inhabiting an area in the central-northeastern Iberian Peninsula during the final centuries BCE. They were explicitly mentioned as being Celts by several classic authors (e.g. Strab ...

. Didius fell during the Social War, in the spring of 89. * Titus Didius (T. f. T. n.), in 113 or 112 BC, and tribune of the plebs in 95. He and his colleague, Lucius Aurelius Cotta, were forced from the tribunal hearing the disputes arising from the accusation brought against Caepio. * Gaius Didius, legate of

Caesar Gaius Julius Caesar (; ; 12 July 100 BC – 15 March 44 BC), was a Roman general and statesman. A member of the First Triumvirate, Caesar led the Roman armies in the Gallic Wars before defeating his political rival Pompey in a civil war, an ...

in 46 BC. In command of Caesar's fleet during Caesar's 46 BC Spanish campaign. He won a naval victory over

Publius Attius Varus Publius Attius Varus (died 17 March 45 BC) was the Roman governor of Africa during the civil war between Julius Caesar and Pompey. He declared war against Caesar, and initially fought Gaius Scribonius Curio, who was sent against him in 49 BC. ...

. After the

Battle of Munda The Battle of Munda (17 March 45 BC), in southern Hispania Ulterior, was the final battle of Caesar's civil war against the leaders of the Optimates. With the military victory at Munda and the deaths of Titus Labienus and Gnaeus Pompeius (elde ...

Didius pursued Gnaeus Pompeius's fleet escaping from Carteia, capturing or destroying his ships. After the death of Gnaeus, Didius was attacked and slain by his quarry's Lusitanian soldiers. *

Quintus Didius Quintus Didius was a Roman governor of the province Syria (31 BC to 29 BC). Octavian, the later Emperor Augustus, won the decisive Battle of Actium against Mark Antony and Cleopatra VII. Then – at the end of 31 BC – he sent Didius as governor ...

, governor of Syria in 31 BC. Although probably appointed by

Marcus Antonius Marcus Antonius (14 January 1 August 30 BC), commonly known in English as Mark Antony, was a Roman politician and general who played a critical role in the transformation of the Roman Republic from a constitutional republic into the aut ...

, he went over to

Octavian Caesar Augustus (born Gaius Octavius; 23 September 63 BC – 19 August AD 14), also known as Octavian, was the first Roman emperor; he reigned from 27 BC until his death in AD 14. He is known for being the founder of the Roman Pr ...

after the

Battle of Actium The Battle of Actium was a naval battle fought between a maritime fleet of Octavian led by Marcus Agrippa and the combined fleets of both Mark Antony and Cleopatra VII Philopator. The battle took place on 2 September 31 BC in the Ionian Sea, ne ...

, and persuaded the Arabs to burn a fleet that Antonius had built in the

Red Sea The Red Sea ( ar, البحر الأحمر - بحر القلزم, translit=Modern: al-Baḥr al-ʾAḥmar, Medieval: Baḥr al-Qulzum; or ; Coptic: ⲫⲓⲟⲙ ⲛ̀ϩⲁϩ ''Phiom Enhah'' or ⲫⲓⲟⲙ ⲛ̀ϣⲁⲣⲓ ''Phiom ǹšari''; ...

. *

Aulus Didius Gallus Aulus Didius Gallus was a Roman general and politician of the 1st century AD. He was governor of Britain between 52 and 57 AD. Career The career of Aulus Didius Gallus up to 51 can be partly reconstructed from an inscription from Olympia. ...

, superintendent of aqueducts during the reign of

Caligula Gaius Julius Caesar Augustus Germanicus (31 August 12 – 24 January 41), better known by his nickname Caligula (), was the third Roman emperor, ruling from 37 until his assassination in 41. He was the son of the popular Roman general Germanic ...

, AD 40; under Claudius, commanded a Roman army in

Bosporus The Bosporus Strait (; grc, Βόσπορος ; tr, İstanbul Boğazı 'Istanbul strait', colloquially ''Boğaz'') or Bosphorus Strait is a natural strait and an internationally significant waterway located in Istanbul in northwestern T ...

, AD 50, and subsequently appointed to succeed

Publius Ostorius Scapula Publius Ostorius Scapula standing at the terrace of the Roman Baths (Bath) Publius Ostorius Scapula (died 52) was a Roman statesman and general who governed Britain from 47 until his death, and was responsible for the defeat and capture of Cara ...

as governor of

Britain Britain most often refers to: * The United Kingdom, a sovereign state in Europe comprising the island of Great Britain, the north-eastern part of the island of Ireland and many smaller islands * Great Britain, the largest island in the United King ...

. * Aulus Didius Gallus Fabricius Veiento, praetor during the reign of

Nero Nero Claudius Caesar Augustus Germanicus ( ; born Lucius Domitius Ahenobarbus; 15 December AD 37 – 9 June AD 68), was the fifth Roman emperor and final emperor of the Julio-Claudian dynasty, reigning from AD 54 unt ...

, he was banished for publishing a number of libels, and for supposedly selling the honours granted by the emperor. He subsequently returned to Rome, and was consul at least twice, the second time under

in AD 80.

Aurelius Victor Sextus Aurelius Victor (c. 320 – c. 390) was a historian and politician of the Roman Empire. Victor was the author of a short history of imperial Rome, entitled ''De Caesaribus'' and covering the period from Augustus to Constantius II. The work w ...

reports that he was a favourite of

Domitian Domitian (; la, Domitianus; 24 October 51 – 18 September 96) was a Roman emperor who reigned from 81 to 96. The son of Vespasian and the younger brother of Titus, his two predecessors on the throne, he was the last member of the Flavi ...

, under whom he was consul. * Didius Scaeva, one of the generals of

Vitellius Aulus Vitellius (; ; 24 September 1520 December 69) was Roman emperor for eight months, from 19 April to 20 December AD 69. Vitellius was proclaimed emperor following the quick succession of the previous emperors Galba and Otho, in a year of c ...

, who was slain at the taking of the Capitol in AD 69. * Titus Didius Secundus, consul ''suffectus'' under

Trajan Trajan ( ; la, Caesar Nerva Traianus; 18 September 539/11 August 117) was Roman emperor from 98 to 117. Officially declared ''optimus princeps'' ("best ruler") by the senate, Trajan is remembered as a successful soldier-emperor who presid ...

in AD 102.. * Lucius Didius Marinus, the second husband of

Annia Cornificia Faustina Minor Annia Cornificia Faustina Minor (''Minor'' Latin for ''the younger'', 160–212 AD) was a daughter of the Roman emperor Marcus Aurelius and his wife, Faustina the Younger. She was sister to Lucilla and Commodus. Her maternal grandparents were ...

, daughter of the

emperor An emperor (from la, imperator, via fro, empereor) is a monarch, and usually the sovereign ruler of an empire or another type of imperial realm. Empress, the female equivalent, may indicate an emperor's wife ( empress consort), mother ( e ...

Marcus Aurelius Marcus Aurelius Antoninus (Latin: áːɾkus̠ auɾέːli.us̠ antɔ́ːni.us̠ English: ; 26 April 121 – 17 March 180) was Roman emperor from 161 to 180 AD and a Stoic philosopher. He was the last of the rulers known as the Five Good ...

. * Quintus Petronius Didius Q. f. Severus, father of the emperor Didius Julianus. * Marcus Didius Q. f. Q. n. Severus Julianus, consul in AD 175 and 179, and Roman emperor for nine weeks in AD 193. * Didius Q. f. Q. n. Proculus, brother of the emperor Didius Julianus. * Didius Q. f. Q. n. Nummius Albinus, brother of the emperor Didius Julianus. * Didia M. f. Q. n. Clara, daughter and only child of

Didius Julianus Marcus Didius Julianus (; 29 January 133 or 137 – 2 June 193) was Roman emperor for nine weeks from March to June 193, during the Year of the Five Emperors. Julianus had a promising political career, governing several provinces, including Da ...

References

{{reflist

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De Oratore ''De Oratore'' (''On the Orator''; not to be confused with '' Orator'') is a dialogue written by Cicero in 55 BC. It is set in 91 BC, when Lucius Licinius Crassus dies, just before the Social War and the civil war between Marius and Sulla, d ...

'', ''In Pisonem'', ''

Philippicae The ''Philippics'' ( la, Philippicae, singular Philippica) are a series of 14 speeches composed by Cicero in 44 and 43 BC, condemning Mark Antony. Cicero likened these speeches to those of Demosthenes against Philip II of Macedon; both Demo ...

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Gaius Julius Caesar Gaius Julius Caesar (; ; 12 July 100 BC – 15 March 44 BC), was a Roman general and statesman. A member of the First Triumvirate, Caesar led the Roman armies in the Gallic Wars before defeating his political rival Pompey in a civil war, and ...

, ''De Bello Hispaniensis'' (On the War in Spain, attributed). * Publius Ovidius Naso (

Ovid Pūblius Ovidius Nāsō (; 20 March 43 BC – 17/18 AD), known in English as Ovid ( ), was a Roman poet who lived during the reign of Augustus. He was a contemporary of the older Virgil and Horace, with whom he is often ranked as one of the ...

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Fasti In ancient Rome, the ''fasti'' (Latin plural) were chronological or calendar-based lists, or other diachronic records or plans of official and religiously sanctioned events. After Rome's decline, the word ''fasti'' continued to be used for si ...

''. *

Marcus Velleius Paterculus Marcus Velleius Paterculus (; c. 19 BC – c. AD 31) was a Roman historian, soldier and senator. His Roman history, written in a highly rhetorical style, covered the period from the end of the Trojan War to AD 30, but is most useful for the per ...

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Appian Appian of Alexandria (; grc-gre, Ἀππιανὸς Ἀλεξανδρεύς ''Appianòs Alexandreús''; la, Appianus Alexandrinus; ) was a Ancient Greeks, Greek historian with Ancient Rome, Roman citizenship who flourished during the reigns of ...

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Aulus Gellius Aulus Gellius (c. 125after 180 AD) was a Roman author and grammarian, who was probably born and certainly brought up in Rome. He was educated in Athens, after which he returned to Rome. He is famous for his ''Attic Nights'', a commonplace book ...

, ''Noctes Atticae'' (Attic Nights). * Lucius Cassius Dio Cocceianus (

Cassius Dio Lucius Cassius Dio (), also known as Dio Cassius ( ), was a Roman historian and senator of maternal Greek origin. He published 80 volumes of the history on ancient Rome, beginning with the arrival of Aeneas in Italy. The volumes documented the ...

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Ammianus Marcellinus Ammianus Marcellinus (occasionally anglicised as Ammian) (born , died 400) was a Roman soldier and historian who wrote the penultimate major historical account surviving from antiquity (preceding Procopius). His work, known as the ''Res Gestae' ...

, ''Res Gestae''. * Ambrosius Theodosius Macrobius, ''Saturnalia''. * Scholia Bobiensia (

Bobbio Scholiast The Bobbio Scholiast (commonly abbreviated ''schol. Bob.'') was an anonymous scholiast working in the 7th century at the monastery of Bobbio and known for his annotations of texts from classical antiquity. He is a unique source for some information ...

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Dictionary of Greek and Roman Biography and Mythology The ''Dictionary of Greek and Roman Biography and Mythology'' (1849, originally published 1844 under a slightly different title) is an encyclopedia/biographical dictionary. Edited by William Smith, the dictionary spans three volumes and 3,700 p ...

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L'Année épigraphique ''L'Année épigraphique'' (''The Epigraphic Year'', standard abbreviation ''AE'') is a French publication on epigraphy (i.e the study of inscriptions or epigraphs as writing). It was set up by René Cagnat, as holder of the chair of 'Epigraphy an ...

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Michael Crawford Michael Patrick Smith, (born 19 January 1942), known professionally as Michael Crawford, is an English tenor, actor and comedian. Crawford is best known for playing both the hapless Frank Spencer in the sitcom '' Some Mothers Do 'Ave 'Em'' a ...

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Classical Quarterly The Classical Association is a British learned society in the field of classics, aimed at developing classical study and promoting its importance in education. Constitution The association was founded on 19 December 1903, and its objects are de ...