Sir Plenorius

Sir Plenorius is a noble knight encountered at a bridge during Sir Launcelot’s rescue of La Cote Male Taile. After a long fight, Launcelot defeats him, but the encounter ends not in his death: Sir Plenorius yields his tower and its prisoners, then accepts a place in King Arthur’s court. His passage from defender of a fortress to member of the Round Table makes the episode’s pattern of combat and incorporation especially clear.

Identity and Introduction

Sir Plenorius is introduced as the third brother La Cote Male Taile faces while crossing a series of guarded bridges. The preceding fight has already left La Cote Male Taile badly wounded, and Sir Plenorius is described as a noble knight. He and La Cote Male Taile joust, are both thrown from their horses, and continue on foot with swords. The contest lasts more than two hours, while Sir Launcelot and the damsel watch from nearby.

The account gives Sir Plenorius no separate family history or motive for defending the passage. His role is established through the test he presents: he is a formidable opponent whom the wounded La Cote Male Taile cannot overcome, but whom Sir Launcelot must face to reach the captive knight and the other prisoners.

The Fight with Sir Launcelot

When La Cote Male Taile collapses from his wounds and exhaustion, Sir Plenorius shows him kindness. He carries the fallen knight into his tower, offers him wine, and has his wounds tended. La Cote Male Taile urges Sir Plenorius to return to the bridge, warning that a better knight is coming, but does not identify Sir Launcelot. The episode thus places an act of care beside the fortress’s role as a place of confinement: Sir Plenorius treats his defeated opponent courteously even as he holds him there.

Sir Launcelot soon calls for Sir Plenorius and demands either the prisoner’s release or a fight. Sir Plenorius mounts and rides to meet him. Their horses fall when they strike each other with their spears, and they continue with swords. Sir Launcelot gradually forces Sir Plenorius back toward the tower gate. When Sir Plenorius refuses to yield, Launcelot presses the attack until he falls to his knees and is brought down. Sir Plenorius then yields himself, his tower, and all its prisoners to Launcelot’s will.

Surrender and Incorporation

Sir Launcelot’s victory releases the captives, among them King Carados of Scotland and many other knights. He offers the fortresses and bridges to La Cote Male Taile, who declines to take Sir Plenorius’s livelihood for himself. Instead, La Cote Male Taile asks that Sir Plenorius be allowed to retain it if he will go to King Arthur’s court and become the king’s man. Sir Launcelot accepts this condition, extending the outcome beyond a military defeat: Sir Plenorius’s future is made conditional on entering Arthur’s service.

Sir Plenorius agrees to attend Arthur’s court at the next Pentecost feast and to be guided there by the king and Sir Launcelot. After Sir La Cote Male Taile has recovered, the knights leave the fortresses together. At Pentecost, Sir Plenorius and Sir La Cote Male Taile—identified there by his other name, Sir Breunor le Noire—are made Knights of the Round Table, and King Arthur grants them great lands. The account also says that Sir Plenorius’s brothers become knights of Arthur.

Later Place and Narrative Role

After his admission to the Round Table, Sir Plenorius proves a noble and valiant knight. He and his brothers attend upon Sir Launcelot for most of their lives, linking his later service to the knight who defeated him and secured his entry into Arthur’s fellowship. His change of allegiance is therefore more than a personal reward: it brings the household associated with the guarded bridges into the court’s network of service.

Sir Plenorius’s story also gives the bridge episode a measured resolution. Combat establishes Launcelot’s superiority and opens the tower’s prison; courtesy toward the wounded and the terms arranged by La Cote Male Taile then turn surrender into allegiance. The narrative does not dwell on Sir Plenorius’s inner life, but it does distinguish him through his noble conduct in defeat and his subsequent reputation as a knight of prowess. It adds that, according to the French book, he avenged his father’s death, though it provides no further account of that deed.