What transpired at the Siege of Ariminum in 538?
The Siege of Ariminum in 538 was a significant military engagement during the Gothic War, a prolonged conflict wherein the Byzantine Empire sought to reclaim the Italian peninsula from the Ostrogothic Kingdom. This siege illustrates the strategic acumen of Belisarius, one of the Byzantine Empire’s most renowned generals, under the reign of Emperor Justinian I.
Ariminum, known today as Rimini, was a vital stronghold on the northeastern coast of Italy, its capture pivotal for controlling the Italian peninsula’s roadways and coastal access.

The Siege of Ariminum (Rimini) in 538 AD was a critical episode in the Gothic War, involving Justinian I’s Byzantine forces under Belisarius and John, and the Ostrogoths. Image: Mosaic of Justinian I.
Background and Strategic Importance
The Gothic War began in 535, when Justinian launched his campaign to reconquer the former territories of the Western Roman Empire. By 538, Belisarius had successfully captured large portions of Italy, including Sicily, Naples, and Rome.
Ariminum’s location made it strategically crucial as it served as a gateway for operations further into northern Italy, including the Po Valley, and provided a defensive bulwark against potential Gothic counterattacks from that region.
The Siege Begins
In late 537 or early 538, following his successful defense of Rome against the Ostrogoths, Belisarius turned his attention to Ariminum. The town was garrisoned by a small Byzantine force under the command of John the Sanguinary prior to Belisarius’s arrival. As the Gothic forces recognized the strategic importance of Ariminum, they quickly mobilized to reclaim it, laying siege to the town. The situation for the defenders became dire, as the Goths managed to cut off supply lines, threatening the garrison with starvation.

Belisarius’s Response
Upon learning of the siege, Belisarius acted swiftly. He understood that losing Ariminum would not only be a tactical defeat but also a significant blow to the morale of his forces and the stability of Byzantine-held territories in Italy. Moreover, the winter conditions made military campaigns challenging, adding urgency to his response.
Belisarius assembled a relief force and marched rapidly from Rome to Ariminum. His approach to lifting the siege was characterized by a combination of military force and psychological warfare, a hallmark of his strategic style. Recognizing the difficulties of a direct confrontation with the besieging Gothic forces, Belisarius opted for a strategy of deception and maneuver.

Belisarius (c. 500 – 565 AD) was a prominent Byzantine general under Emperor Justinian I, renowned for his pivotal role in recapturing vast territories of the former Western Roman Empire. Image: A mosaic artwork of Belisarius.
Tactical Deception and Victory
As he neared Ariminum, Belisarius sent a small detachment of troops to make their presence known to the Goths, suggesting that the main Byzantine army was on its way. This feint was designed to create an overreaction from the Goths, pulling them away from their siege positions around the city. Meanwhile, Belisarius used a less guarded route to approach the city, managing to resupply John’s garrison and reinforce its defenses.
The psychological impact of Belisarius’s maneuver was immediate. The Goths, fearing that they would be caught between the city’s defenders and the approaching Byzantine army, lifted the siege and retreated. This retreat allowed Belisarius to secure Ariminum without a direct and potentially costly battle. The relief of Ariminum not only preserved a critical strategic position but also bolstered the morale of Byzantine forces and local Italian populations under Byzantine control.
Did you know…?
After the siege of Ariminum, Eastern Roman general John credited fellow general Narses for the relief effort, stating Narses persuaded Belisarius to assist, averting a division of forces that would have left John vulnerable. This deepened divisions within Byzantine leadership.
Aftermath and Significance
The successful defense and relief of Ariminum were crucial for maintaining Byzantine momentum in the Italian campaign. It demonstrated the effectiveness of Belisarius’s leadership and his ability to use both traditional military tactics and psychological strategies to achieve his objectives.
The Siege of Ariminum stands out in the Gothic War as a testament to the challenges faced by Byzantine forces in maintaining and expanding their control over Italian territories. It underscores the complex nature of warfare during this period, where supply lines, local loyalties, and the physical geography of the battlefield played critical roles. Moreover, the siege highlights the interplay of military force and psychological warfare, elements that Belisarius mastered and employed throughout his campaigns.
Overall, the Siege of Ariminum not only secured a Byzantine foothold in northern Italy but also exemplified the strategic depth and military prowess that defined Belisarius’s career and contributed significantly to the Byzantine efforts to restore Roman dominion over the lost western provinces.
FAQs
Here are some questions and answers based on the information about the Siege of Ariminum (Rimini) in 538 AD:
What was the Siege of Ariminum, and when did it take place?
The Siege of Ariminum, also known as the Siege of Rimini, was a military engagement during the Gothic War between Byzantine forces under Belisarius and John and an Ostrogothic force. It took place in 538 AD.
Ariminum, known today as Rimini, is a city on the northeastern coast of Italy. It is located in the Emilia-Romagna region, situated along the Adriatic Sea.

Historically, Ariminum was a significant city in Roman times due to its strategic location at the junction of several important roads, making it a key gateway between northern and central Italy. Image: An artwork depicting a harbor in Ariminum.
Why did John capture Ariminum, and what was the immediate reaction of the Goths?
John captured Ariminum in March 538 to draw the Goths away from their siege of Rome, capitalizing on their fear for their own capital, Ravenna. This maneuver successfully caused the Goths to retreat from Rome to Ariminum.
How did the Ostrogoths attempt to recapture Ariminum, and what was the outcome?
The Ostrogoths, led by Vitiges, tried to recapture Ariminum by laying siege to it, initially attempting to use a siege ladder and then trying to starve the town. However, these attempts were ultimately unsuccessful.
How did Belisarius respond to the siege of Ariminum?
Encouraged by fellow military commander Narses, Belisarius sent three groups to relieve Ariminum. He and Narses passed through the Apennines, while Ildiger and Martinus led their troops along the Adriatic coast, with Ildiger by sea and Martinus on land.

To relieve the city, Belisarius strategically deployed forces through challenging terrains: himself and Narses through the Apennines, and Ildiger and Martinus along the Adriatic coast, with Ildiger by sea and Martinus on land. Image: Byzantine General Narses.
What deceptive tactics did the Byzantine forces use during the siege, and what was their effect?
The Byzantine forces used deceptive tactics such as lighting campfires to exaggerate the size of Martinus’ army approaching from the south, and showing Ildiger’s fleet. These actions misled the Goths into believing that a large Byzantine force was converging on them from multiple directions.
What was the final outcome of the Siege of Ariminum?
The Goths lifted their siege on 24 July 538 and withdrew to their capital, Ravenna, after being tricked by the deceptive maneuvers of the Byzantine forces.
What was the impact of the siege on the Byzantine leadership?
The siege further ruptured unity among the Byzantine leadership, exposing and possibly exacerbating existing divisions and rivalries within the command structure.