Galla Placidia(386 — 450)
Galla Placidia
Empire byzantin, Rome antique
8 min read
Daughter of Emperor Theodosius I, Galla Placidia was Augusta of the Western Roman Empire and regent for her son Valentinian III. A major political figure of the 5th century, she navigated barbarian invasions and court intrigues to preserve imperial power.
Frequently asked questions
Key Facts
- Born around 388, daughter of Emperor Theodosius I
- Captured by the Visigoths during the sack of Rome in 410, she married the Visigoth king Ataulf in 414
- Became Augusta and regent of the Western Roman Empire for her son Valentinian III from 423 onward
- Commissioned the Mausoleum of Galla Placidia in Ravenna, a masterpiece of early Christian art, around 430
- Died in 450 in Rome, having wielded decisive political influence for nearly three decades
Works & Achievements
A small Greek-cross building constructed in Ravenna, covered on the inside with mosaics of exceptional beauty depicting the starry sky, Christ the Good Shepherd, and martyrs. Listed as a UNESCO World Heritage Site, this mausoleum is one of the treasures of early Christian art.
A large basilica built in Ravenna at the initiative of Galla Placidia, of which only fragments survive. It bears witness to the policy of religious prestige pursued by the Augusta to assert the legitimacy of her power.
For more than ten years, Galla Placidia governed the Roman West de facto in the name of her young son Valentinian III. She upheld imperial authority in the face of barbarian kingdoms, rivalries between generals such as Aetius and Boniface, and pressure from the Eastern Empire.
Through her marriages, negotiations, and alliances, Galla Placidia was among the first to practice a diplomacy of integration with the barbarian peoples, seeking to make them allies (foederati) rather than enemies of the Empire.
Anecdotes
During the Visigoth sack of Rome in 410, Galla Placidia was taken as a prestigious hostage by King Alaric. Far from being mistreated, she lived among the Visigoths for several years, learning their customs. This gilded captivity would transform her life in unexpected ways.
In 414, Galla Placidia married the Visigoth king Ataulf in Narbonne at a ceremony blending Roman and barbarian rites. The groom presented the imperial princess with fifty young men each carrying two trays filled with gold and precious gems — plunder from the sack of Rome. This marriage symbolized an attempt to merge the Roman Empire with the barbarian peoples.
When her first son, whom she had named Theodosius in honor of her imperial father, died in infancy in Barcelona around 415, Galla Placidia had his body placed in a silver coffin. This profound grief left a lasting mark on the princess, who never forgot this child born between two civilizations.
Back in Ravenna after being exchanged as a diplomatic hostage, Galla Placidia initially refused to marry the powerful general Constantius, whom her brother Emperor Honorius had chosen for her. Forced to accept, she ultimately established herself as co-ruler and received the title of Augusta in 421 — a rare political recognition for a woman.
During her regency for her son Valentinian III (from 425 onward), Galla Placidia had a mausoleum built in Ravenna, adorned with mosaics of extraordinary beauty, now a UNESCO World Heritage Site. This building reflects her political instincts: by aligning herself with the Church, she legitimized an imperial power weakened by invasions.
Primary Sources
Olympiodorus describes the marriage of Galla Placidia and Ataulf at Narbonne, as well as the lavish gifts offered by the Visigothic king to the Augusta, including fifty young men carrying plundered Roman gold.
Prosper records the accession of Valentinian III and the regency of his mother Galla Placidia Augusta, emphasizing her central role in restoring imperial legitimacy in the West after the usurpation of John.
Sozomen recounts Galla Placidia's relations with Bishop Atticus of Constantinople during her forced stay in the East, illustrating her ties to religious authorities.
Jordanes evokes the fate of Galla Placidia in the context of the rising power of the Gothic peoples, describing her role as a living link between the Roman world and the barbarian kingdoms.
Fragments of correspondence show Galla Placidia seeking the support of her nephew, the Eastern emperor, to place her son Valentinian on the Western throne in 424–425.
Key Places
Capital of the Eastern Empire where Galla Placidia was raised after the death of her father Theodosius I, and where she took refuge with her children during the usurpation of John (423–425). There she sought the help of her nephew Theodosius II to restore her son to the throne.
Capital of the Western Roman Empire from 402 and main residence of Galla Placidia during her regency. There she had her famous mausoleum and the church of Santa Croce built, making Ravenna a center of Christian art in late antiquity.
City where Galla Placidia lived at the imperial court before the sack of 410, and where she died in November 450. Rome symbolized the continuity of Roman greatness that she strove throughout her life to preserve.
City in Gallia Narbonensis where the marriage of Galla Placidia to the Visigoth king Ataulf took place in 414, in a ceremony that blended Roman and barbarian traditions. This event symbolizes the fusion and tensions between two worlds.
City where Galla Placidia lived as a prisoner of the Visigoths following the assassination of Ataulf in 415, and where her son Theodosius died. This painful captivity ended with the diplomatic exchange that brought her back into the fold of the Empire.