Sir Balin

In the Post‑Vulgate/Suite du Merlin and later Maloryan retellings, Balin appears as a Northumbrian knight who, early in Arthur's reign, becomes involved with otherworldly agencies when a damsel sent from Lile (Lily) of Avalon brings a sheathed sword to Arthur's court. The damsel claims only a truly virtuous knight may draw it. Balin draws and claims the sword, despite the damsel later warning him that keeping it will bring ruin; Merlin later explains the sword bears a curse. Balin's subsequent actions — including beheading the Lady of the Lake in court and, ultimately, delivering the Dolorous Stroke with the Holy Lance — fulfill prophetic designs and lead to tragic outcomes, including his fatal combat with his brother Balan, in which they unknowingly slay one another.

The supplied sources provide no detailed physical description (height, hair, armor specifics). They portray Balin socially and nominally as a 'poor knight' from Northumberland and record epithets that indicate temperament and equipment: he is called 'Balin the Savage' and 'the Knight with the Two Swords.' The epithet suggests he bears distinctive weaponry (a sword taken from the damsel and later use of the Holy Lance), but the narratives do not supply a sustained corporeal portrait.

Primary attributions are exceptional martial skill and boldness: Balin successfully draws the damsel's sword in a trial that others fail (the damsel claimed only a truly virtuous knight could draw it), and contemporaneous commentators in the narratives (via Merlin) call him potentially the best and bravest knight had he lived. His defining behavioral trait is impetuosity: rash, swift action (for example, beheading the Lady of the Lake in Arthur's court and refusing the damsel's warning about the sword) which precipitates fateful consequences. There is no indication in the supplied sources that Balin possesses inherent supernatural powers; his force lies in martial prowess and decisive, often reckless, action.