Geoffrey of Monmouth identified Leir as the eponymous founder of the city ofLeicester, which he called Kaerleir. Leir, Lerion, and Ligora all derive from the old Brittonic name of the River Soar, *Ligera or *Ligora.
Legend
Reign
Leir's story was first recorded in Geoffrey of Monmouth's History of the Kings of Britain. In it, Leir is part of the dynasty of Brutus of Britain and succeeded to the throne after his father Bladud died while attempting to fly with artificial wings. The dating is inexact, but Geoffrey made Bladud a contemporary of the biblical prophetElijah. Leir was given the longest reign of Geoffrey's kings, ruling for 60 years. Geoffrey claimed he was the :wikt:eponym|eponymous founder of Leicester in England.
Abdication
Leir was said to have been the end of Brutus of Troy's male line of descent, siring three daughters: Goneril, Regan, and Cordelia. As he neared his death, he divided his kingdom among them. Goneril and Regan flattered their father and, at the advice of Leir's nobles, were married off to the Dukes of Albany and Cornwall, respectively. Cordelia, despite being her father's favourite, refused to flatter the king, feeling that he should not need to make special assurances of her love, and was given no land to rule. King Aganippus of the Franks courted and married Cordelia, despite Leir's refusal to pay a dowry. Leir then gave Goneril and Regan half his kingdom, planning to bequeath them the remainder at his death; instead, his sons-in-law rebelled and seized the whole of it. Duke Maglaurus of Albany, Goneril's husband, maintained Leir with a retinue of 60 knights, but his wife reduced this by half after two years. Leir then fled to Regan, who reduced his entourage to only five men. Returning to Albany and pleading with Goneril, Leir was left with a single knight for protection.
Restoration
At this point, Leir feared both his older daughters and fled to France. He sent Cordelia a messenger when he was outside her court at Karitia. She had him bathed, royally clothed, and assigned a fittingly large band of retainers. He was then officially received by the king and made regent of France, with the Frankish nobles vowing to restore him to his former glory. Leir, Cordelia, and her husband invaded Britain and successfully overthrew his other daughters and sons-in-law. Leir ruled three years and then died. Cordelia succeeded him and buried him in an underground shrine to the godJanus beneath the River Soar near Leicester—allegedly the current site of the city's Jewry Wall. An annual feast was held nearby in his honour. , c. 1779
In culture
Leir's life was dramatised on the Elizabethan stage in an anonymous play, King Leir, which was registered in 1594 and published in 1605 under the title The True Chronicle History of King Leir, and his three daughters, Gonorill, Ragan, and Cordella. This precursor to Shakespeare's tragedy was a comedy, repeating Geoffrey's story and ending happily with Leir's restoration to power. The story also appears in John Higgins's Mirror for Magistrates, Edmund Spenser's The Faerie Queene, and other works.