The siege episode appears in Chrétien de Troyes's Perceval, or The Story of the Grail, and receives a fuller treatment in Wolfram von Eschenbach's Parzival. Names shift between the works: the French Clamadeu becomes Clamide, Perceval becomes Parzival, and Blancheflor's counterpart is Condwiramurs. The seneschal known as Anguingueron in the French story corresponds to Wolfram's Kingrun. These differences matter because details of Clamide's later life at Arthur's court belong to the German poem, not automatically to every appearance of the French ruler.

In Wolfram's account, Clamide is king of Brandigan and an unwanted suitor of Condwiramurs. His forces have devastated her lands and brought Pelrapeire close to starvation. The queen's predicament is not an ordinary courtship disagreement: her freedom and the survival of her household are threatened by an army. Parzival arrives after receiving instruction from Gurnemanz and hears her appeal for help. He is inexperienced, but not a boy who has never handled a sword. The training he has already received gives the rescue its place in his developing knightly career.

Kingrun is defeated first and sent to Arthur's court. Clamide then challenges Parzival after the city's defenders resist his forces. Their encounter involves mounted fighting and blows with weapons before Parzival overcomes him. With death close, Clamide yields. Parzival spares him on terms that end his claim upon Condwiramurs and direct him to Arthur's company. The victory frees the queen's lands from the immediate siege, but it also carries the consequences of Parzival's earlier visit to court into a new setting.

The wounded king presents himself to Cunneware and delivers Parzival's message. She had suffered a beating from Kay after laughing at the young hero, and the defeated knights' service publicly answers that humiliation. At court Clamide encounters Kingrun again and is received among the noble company. His later attachment to Cunneware does not erase the suffering caused by his siege, but it changes the direction of his story. Instead of continuing the pursuit of Condwiramurs, he asks Parzival to help him obtain Cunneware's favour.

At the gathering beside the Plimizoel, Parzival supports the match on the condition that Cunneware herself is willing. Wolfram brings the couple together and later describes their marriage feast before they leave the encampment. Clamide takes knights and wandering minstrels into his following, rewarding them as he returns to his kingdom. Orilus and Jeschute accompany the couple towards Brandigan to honour Cunneware as queen. The defeated besieger thus acquires a future beyond defeat: marriage, generosity and renewed standing within the courtly world. That extended conclusion is one of the distinctive features of Wolfram's version.