His 3-year-old half-sister, Galla Placidia, is send to Rome where she spent her childhood in the household of Stilicho and his wife Serena.

Placidia seems to have spent the rest of her life in Constantinople.

Aelia Galla Placidia ( 392 – November 27, 450 ), daughter of the Roman Emperor Theodosius I, was the Regent for Emperor Valentinian III from 423 until his majority in 437, and a major force in Roman politics for most of her life.

Ravenna enjoyed a period of peace, during which time the Christian religion was favoured by the imperial court, and the city gained some of its most famous monuments, including the Orthodox Baptistery, the so-called Mausoleum of Galla Placidia ( she was not really buried there ), and San Giovanni Evangelista.

In 429 he was elevated to the rank of magister militum ; this was probably the iunior of the two offices of magister militum praesentalis, as the senior is known to have been the patrician Flavius Felix, the most influential man in those years, supporter of Galla Placidia.

After the execution of Felix, Aëtius and Bonifacius remained as the empire's most influential generals, both constantly vying for the favor of Placidia.

Bonifacius was eventually returned to favor by Placidia, but not before revolting and causing the loss of most of Africa to the Vandals.

The most common story is that the structure was built by Galla Placidia, who was a well-known patron of the arts, to be used as a mausoleum for her and her family.

In 417, Constantius married Honorius ' sister, Galla Placidia, much against her will.

In his final years, Honorius reportedly developed a physical attraction to his half sister, and in order to escape his unwelcome attentions, Galla Placidia and her children, the future emperor Valentinian III and his sister, Honoria, fled to Constantinople.

Placidia was granted her own household by her father in the early 390s and was thus financially independent while underage.

His mother Galla Placidia ends her regency, but continues to exercise political influence at the court in Rome.

Both the Empress Galla Placidia and her husband Constantius III favored Eulalius, who had been elected first.

Eudoxia and her daughters, Eudocia and Placidia, are taken hostage.

After many vicissitudes, Galla Placidia returned to Ravenna with her son, Emperor Valentinian III and the support of her nephew Theodosius II.

This in revenge for the hostile action of empress Galla Placidia ( see 427 ), ruling in behalf of her son Valentinian III.

His mother Galla Placidia ends her regency, but continues to exercise political influence until her death in 450.

Regardless, the powerful Magister militum Aetius had forced Valentinian to betroth Placidia to his own son Gaudentius, so Olybrius could not have married her before Aetius ' death.

After the sack of Rome ( 455 ), the Vandals took Licinia Eudoxia and her two daughters, among which also Olybrius ' wife Placidia, to Africa ; at that time Olybrius was in Constantinople.

There is another possibility: Olybrius and Placidia were engaged in 455, and only after Gaiseric freed her from his possession in the early 460s were they at last married.

Therefore Gaiseric freed Licinia Eudoxia ( thus fulfilling Daniel's prophesy ) and her daughter Placidia ( Olybrius ' wife ), but did not stop his raids on Italian's coasts, in order to press for the election of his candidate on the Western throne, but his project failed, because Ricimer, who had become the Magister militum of the West, chose Libius Severus as new Emperor ( 461 – 465 ).

However, Placidia was now free, and re-joined her husband at Constantinople, where, a year later, gave him a daughter, Anicia Juliana.

From Ricimer's point of view, Olybrius was a good candidate, being a member of the Roman senatorial aristocracy and because of his marriage to Placidia ; his marriage to her makes him the last Emperor of the House of Theodosius.

The story told in the opera is quite different from the real one, despite the fact that Zeno claimed to use several historical sources ( Evagrius Scholasticus l. 2. c. 7, Procopius of Caesarea, Historia Vandalorum, l. 1, Paul the Deacon, vi ): Ricimer captures Rome, frees his sister Teodolinda and enslaves Placidia, daughter of Valentinian III ; a little later, Olybrius frees Rome and Placidia, and marries her.

After the death of his father in 421, Valentinian followed his mother and his sister ( Justa Grata Honoria ) to Constantinople, when court intrigue saw Galla Placidia forced to flee from her half-brother, Emperor Honorius, and the young Valentinian went to live at the court of his cousin Theodosius II.

Placidia was the younger daughter of Emperor Valentinian III, who planned to marry her to Majorian ( 450 ca .).

After the heads of Sebastianus and Jovinus arrived at Honorius ' court in Ravenna in late August, to be forwarded for display among other usurpers on the walls of Carthage, relations between Ataulf and Honorius improved sufficiently for Ataulf to cement them by marrying Galla Placidia perhaps at Narbo in early 414, but Jordanes says he married her in Italy, at Forlì ( Forum Livii ).

She had an older, maternal half-brother by the first marriage of Placidia to king Ataulf of the Visigoths, Theodosius, who was born in 414 but died early in the following year.

Alaric was succeeded in the command of the Gothic army by his brother-in-law, Ataulf, who married Honorius ' sister Galla Placidia three years later.

After some skirmishing, Placidia and Aëtius came to an agreement that established the political landscape of the Western Roman Empire for the next thirty years.

According to the accounts of Priscus, Procopius, John Malalas, Theodorus Lector, Evagrius Scholasticus, Theophanes the Confessor, Joannes Zonaras and Cedrinus, Placidia can be estimated to have stayed a prisoner in Carthage for six to seven years.

Eudoxia returned to Constantinople after an absence of twenty-five years, Placidia joining her.

There his infant son by Galla Placidia was buried, and there Ataulf was assassinated by one of his household retainers, possibly a former follower of Sarus.

According to " De Consulatu Stilichonis " by Claudian, Placidia was betrothed to Eucherius, only known son of Stilicho and Serena.

He is the husband of Placidia held in Vandal captivity.

Due to his marriage to Placidia, Olybrius could be considered both an heir to Theodosian dynasty and a member of the Vandal royal family through marriage.

Placidia was the daughter of Roman Emperor Theodosius I and his second wife Galla, who was herself daughter of Emperor Valentinian I and his second wife Justina.

* 421 – Galla Placidia, wife of the Emperor Constantius III, becomes a widow for the second time when he dies suddenly of an illness.

King Ataulf and his pregnant wife Galla Placidia leave Gallia Narbonensis, they relocate at Barcelona.

* September 2 – Constantius III dies suddenly of an illness, his wife Galla Placidia becomes for the second time a widow.

Olybrius married Placidia, younger daughter of Western Emperor Valentinian III and of his wife Licinia Eudoxia, thus creating a bond between a member of the senatorial aristocracy and the House of Theodosius.

Theodosius I married twice ; first to Aelia Flaccilla, who bore him two sons ( Arcadius and Honorius ), and second to Galla ( daughter of Valentinian I by his second wife Justina, widow of Magnentius ), who bore him a daughter ( Galla Placidia ).

Valentinian III's wife Licinia Eudoxia ( who after his death married Petronius Maximus, see below ) bore him a daughter, Placidia, who married Olybrius ( see below ).

Placidia was the wife of Olybrius, Western Roman Emperor.

He even led away as captives surviving senators, accompanied by their wives ; along with them he also carried off to Carthage in Africa the empress Eudoxia, who had summoned him ; her daughter Placidia, the wife of the patrician Olybrius, who then was staying at Constantinople ; and even the maiden Eudocia.

In 478, Malchus reported that " ambassadors came to Byzantium from Carthage, under the leadership of Alexander, the guardian of Olybrius ' wife Placidia.

He gave thanks that the emperor had honored the wife of Olybrius ..." Placidia is last mentioned c. 484.

He even led away as captives surviving senators, accompanied by their wives ; along with them he also carried off to Carthage in Africa the empress Eudoxia, who had summoned him ; her daughter Placidia, the wife of the patrician Olybrius, who then was staying at Constantinople ; and even the maiden Eudocia.