Uther Pendragon's death creates a succession crisis in which powerful lords compete for the crown, while Merlin works to establish Arthur's claim through both public declaration and a test presented as divine judgment. Arthur's repeated success in drawing the sword from the stone culminates in his coronation, but the later resistance of rival kings and the Roman demand for tribute show that securing kingship does not end the struggle over authority.

Uther's Final Declaration and the Vacancy

After Uther had been ill for two years, enemies rose against him and attacked his forces. Merlin urged the king to go into the field despite his condition, saying that victory depended on his presence. Uther was carried in a horse-litter with a great host, and at St. Albans his men defeated the northern force. Sir Ulfius and Sir Brastias distinguished themselves in the fighting; the king returned to London, but his illness soon worsened.

For three days and nights Uther could not speak. When the barons gathered before him with Merlin, Merlin asked whether Arthur should succeed him as king. Uther turned toward them and publicly gave Arthur his blessing, charging him to claim the crown righteously and honorably. He then died. His declaration supplies a direct dynastic claim, but it does not immediately settle the succession: after his burial, powerful lords strengthened themselves, and many expected to become king.

Merlin's Test of Rightful Rule

To address the uncertainty, Merlin advised the Archbishop of Canterbury to summon the realm's lords and men-at-arms to London at Christmas. The gathering was called to pray for a sign that would identify the rightful king. After matins and the first mass, a stone appeared in the churchyard opposite the high altar. A sword stood point-down in an anvil set in the stone, with a golden inscription declaring that whoever drew it was rightful king of all England.

The assembled lords could not move the sword. The archbishop ordered ten knights to guard it and allowed others to try, while a tournament on New Year's Day helped keep the lords and commons together. The test therefore made political recognition depend not only on Uther's word but on a public sign that no rival could reproduce. Arthur's eventual success would be witnessed by both the great and the common people.

Arthur Draws the Sword and Is Crowned

At first, Arthur drew the sword when Sir Ector asked him to try after Sir Kay had failed. Sir Ector then revealed that he was not Arthur's birth father: he had been entrusted with Arthur's upbringing, and his wife had nursed him. Arthur grieved at learning that Sir Ector was not his father, but affirmed his debt to the household that had raised him. In return for Sir Ector's care, he promised to honor his foster-father's request that Sir Kay become seneschal.

The lords did not accept the first demonstration as final. At Twelfth Day, other claimants failed to draw the sword, but their anger at the prospect of being governed by a boy led them to postpone the decision until Candlemas. Arthur drew it again then, and again the lords delayed judgment, this time until Easter. At Pentecost, after no one else could succeed, Arthur drew the sword before the lords and commons. The people declared that they would have him as king and would no longer delay; they knelt and asked his pardon for having kept him waiting. Arthur forgave them, offered the sword on the altar, was made a knight, and was crowned. He swore to rule truly and uphold justice for the rest of his life.

Repairing the Realm and Facing Opposition

The new king's first work included restoring lands taken from their rightful owners during the disorder after Uther's death. He appointed Sir Kay seneschal of England, Sir Baudwin of Britain constable, Sir Ulfius chamberlain, and Sir Brastias warden of the north from the Trent onward, where Arthur's enemies were concentrated. The account says that within a few years Arthur won the north, Scotland, and the territories under their obedience; he also overcame the parts of Wales that resisted him. His claim, confirmed by the sword and the people's acclamation, was thus followed by the exercise of authority through restitution, appointments, and conquest.

Resistance nevertheless continued. Six kings gathered five others into an alliance against Arthur, swearing not to abandon one another until they had destroyed him. Their force was described as fifty thousand mounted men-at-arms and ten thousand on foot. The scale of this coalition shows the limit of a single public test: Arthur's right to rule may be presented as divinely confirmed, yet rival rulers still contest it through armies and oaths of mutual support.

A later Roman embassy renewed the question of sovereignty in another form. Twelve aged ambassadors, carrying olive branches, demanded Britain's tribute for the emperor, citing Rome's former authority and threatening war. Arthur protected the envoys from young knights who wanted to attack them, gave them hospitality, and answered only after consulting his lords. He rejected the tribute demand and asserted a claim to imperial sovereignty on the basis of his predecessors; his allies promised military support. The episode extends the succession crisis beyond the crown itself: Arthur's authority must be defended against both domestic rivals and an external empire claiming the right to command him.