Pomponia Ummidia (219-after 275) was an Anatolian Roman noblewoman and was a prominent figure in Rome during the reigns of the Roman Emperors Gallienus, Claudius Gothicus, Quintillus and Aurelian. She lived in the period the Crisis of the Third Century in the Roman Empire.
Pomponia Ummidia came from a distinguished senatorial family. She was the daughter of the Roman Senator Pomponius Bassus and the wealthy heiress Annia Aurelia Faustina, while her brother was the Roman Senator Pomponius Bassus. She was of Italian Roman and Pontian Greek ancestry.
The paternal great, grandparents of her mother were the Roman Emperor Marcus Aurelius and Roman Empress Faustina the Younger. Through her mother, Pomponia Ummidia was a descendant of the former ruling Nerva–Antonine dynasty of the Roman Empire.
- Gaius Ummidius Quadratus Annianus Verus, a Roman Senator who served as a suffect consul in 146 who married Marcus Aurelius’ sister, Annia Cornificia Faustina
- Ummidia Cornificia Faustina, the daughter of Gaius Ummidius Quadratus Annianus Verus and Annia Cornificia Faustina. She was the niece of Marcus Aurelius and the maternal grandmother of Annia Aurelia Faustina
- Marcus Claudius Ummidius Quadratus, the paternal uncle of Annia Aurelia Faustina who was adopted by the Roman Consul Marcus Ummidius Quadratus Annianus. Marcus Ummidius Quadratus Annianus was the brother of Ummidia Cornificia Faustina and the nephew of Marcus Aurelius
She along with her brother, Pomponia Ummidia were born and raised in her mother’s large estate in Pisidia. The estate she and her brother was born and raised in, is one of a number of estates in Pisidia called the Cyllanian Estates. These estates were very large properties and existed from the time of the Roman Dictator of the Roman Republic, Lucius Cornelius Sulla (c. 138 BC-78 BC).
When her father died in 221, her mother was briefly married to the Roman Emperor Elagabalus. By the end of 221, Elagabalus had ended their marriage by divorcing her mother.
When Annia Aurelia Faustina died, Pomponia Ummidia inherited her mother’s estate and the fortune of her mother. By this means, she became a very wealthy heiress. According to the inscriptions found on the estate, Pomponia Ummidia is named as the heiress of the estate, inheriting the estate from her parents. These inscriptions reveal that Pomponia Ummidia married a Greek Politician called Flavius Antiochianus. Flavius Antiochianus was an active politician in the reigns of the four above mentioned Roman Emperors. She spent her time between Rome and Pisidia. According to the inscriptions, Pomponia Ummidia appears to have been a virtuous person in character. It is unknown whether Pomponia Ummidia bore any of Flavius Antiochianus' children.