Historical biography archive · Updated 2026-11-03

Valentinian I Biography and Timeline — Page 2

Follow Valentinian I through 74 dated historical records for Roman Empire.

Valentinian I, historical timeline

A chronological timeline drawn from matching World History Database records.

74Distinct records
2 of 2Page
368–375Years on this page

368

Romans Attempt Flanking Movement

Solicinium · Warfare / Military

Roman commanders manoeuvred to overcome the advantage held by fighters positioned on elevated terrain.

Alamanni Resist Roman Assault

Solicinium · Warfare / Military

The Alamannic force resisted the advance of imperial troops before being driven from its defended position.

Solicinium Produces Fierce Fighting

Solicinium · Warfare / Military

Ancient accounts characterise the conflict as a difficult engagement with serious losses among Roman soldiers.

Roman Army Gains Battlefield

Solicinium · Warfare / Military

The imperial troops ultimately prevailed against the Alamannic force at the engagement traditionally called Solicinium.

Alamannic Defenders Lose Position

Solicinium · Warfare / Military

The defeat deprived the Alamannic fighters of their tactical advantage in the contested terrain.

Roman Losses Remain Heavy

Solicinium · Warfare / Military

Although the Romans won, the campaign was remembered as costly to their own troops.

Valentinian Retains Imperial Command

Solicinium · Warfare / Military

Valentinian survived the dangerous fighting and continued to direct the western empire after the battle.

Victory Supports Rhine Defence

Solicinium · Warfare / Military

The Roman success formed part of a broader effort to reduce threats to the Rhine frontier provinces.

Solicinium Location Remains Debated

Solicinium · Warfare / Military

The precise location of the battlefield called Solicinium has not been securely identified by historians.

Battle Date Remains Disputed

Solicinium · Warfare / Military

Modern accounts vary between 367 and 368 for the battle, making the precise chronology uncertain.

Ammianus Records German Campaign

Solicinium · Warfare / Military

Ammianus Marcellinus provides the principal surviving narrative of Valentinian's operations against the Alamanni.

Solicinium Reflects Imperial Strategy

Solicinium · Warfare / Military

The battle illustrates Valentinian's policy of meeting hostile frontier forces with aggressive field campaigns.

Roman Cavalry Operates In Campaign

Solicinium · Warfare / Military

Mounted elements formed part of the Roman field army during the western frontier wars of Valentinian.

Infantry Bears Difficult Advance

Solicinium · Warfare / Military

Roman infantry faced strenuous conditions in the terrain associated with the engagement against the Alamanni.

Alamannic Coalition Faces Defeat

Solicinium · Warfare / Military

The reverse experienced by the Alamanni reduced immediate pressure on Roman military positions in the region.

Western Court Reports Military Success

Solicinium · Warfare / Military

Victory against the Alamanni reinforced the image of Valentinian as a defender of the western provinces.

Battle Enters Later Histories

Solicinium · Warfare / Military

Later reconstructions of the Roman Alamannic wars draw on Ammianus to place Solicinium in Valentinian's campaigning.

Victory Does Not End Frontier War

Solicinium · Warfare / Military

Alamannic conflict continued beyond Solicinium despite the immediate Roman military success.

Solicinium Campaign Shows High Cost

Solicinium · Warfare / Military

The clash demonstrated that defending Gaul through offensive warfare could exact heavy casualties even in victory.

370

Valentinian Fortifies Rhine Border

Rhine · Warfare / Military

Valentinian constructed and strengthened defensive positions along the Rhine to reduce incursions by Alamannic forces.

Valentinian Encourages Fiscal Collection

Gaul · House / House of Valentinian

Valentinian's administration sought revenue for military defence through taxes and closely supervised officials.

Valentinian Legislates On Schools

Gaul · House / House of Valentinian

An imperial enactment during Valentinian's reign regulated students and their conduct while studying at Rome.

Valentinian Issues Medical Provisions

Gaul · House / House of Valentinian

The western government enacted measures concerning physicians and public provision of medical service.

Valentinian Addresses Provincial Abuses

Gaul · House / House of Valentinian

Laws from the reign attempted to control misconduct by officials and excessive burdens placed on provincials.

Valentinian Maintains Religious Policy

Gaul · House / House of Valentinian

Valentinian generally avoided imposing a single Christian faction across his western provinces.

374

Invasion of Danube

Emperor · River Danube · House / House of Valentinian

The Sarmatians & Germans breach the walls of the forts of the Danube. Marches to the Danube & repulses the invasion

Role range: 0364-0375

Valentinian Negotiates With Macrian

Gaul · Warfare / Military

The emperor dealt diplomatically with the Alamannic leader Macrian as frontier policy shifted between warfare and agreement.

Valentinian Concludes Rhine Settlement

Gaul · Warfare / Military

A peace arrangement with Macrian stabilised part of the frontier after years of campaigning.

Valentinian Moves Toward Danube

Gaul · Warfare / Military

Sarmatian and Quadi attacks prompted the emperor to direct operations on the middle Danube.

375

Death of Valentinian I

Emperor · Bregetio · House / House of Valentinian

Death of Valentinian I, age 53, succeeded in name by his 4 yr old son Valentinian II

Role range: 0364-0375

Valentinian Investigates Quadi Complaints

Gaul · Warfare / Military

The emperor received accounts of regional grievances during negotiations following frontier violence.

Valentinian Meets Quadi Delegation

Gaul · Warfare / Military

An embassy from the Quadi came before Valentinian at Brigetio during the final phase of his reign.

Valentinian Dies At Brigetio

Gaul · Warfare / Military

Valentinian died in November 375 while dealing with frontier affairs, traditionally after becoming enraged during an audience.

Valentinian Second Raised Emperor

Gaul · House / House of Valentinian

After Valentinian's death his young son Valentinian II was elevated as an additional western emperor.

Records, sources and methodology

These dates and descriptions come from the historical_events database. Exact duplicate records have been collapsed. Names are grouped by the country, Name 2 and Name 1 fields; records with missing Name 2 cannot be reliably assigned to an individual biography. Check the underlying sources before formal citation.