Holy Grail in the context of "Knight of the Round Table"

The Knights of the Round Table (French: Chevaliers de la Table Ronde) are the legendary knights of the fellowship of King Arthur that first appeared in the French-language Matter of Britain literature in the mid-12th century. The Knights are a chivalric order dedicated to ensuring the peace of Arthur's kingdom following an early warring period, entrusted in later years to undergo a mystical quest for the Holy Grail. The Round Table at which they meet is a symbol of the equality of its members, who range from sovereign royals to minor nobles.

The various Round Table stories present an assortment of knights from all over Great Britain and abroad, some of whom are even from outside of Europe. Their ranks often include Arthur's close and distant relatives, such as Agravain, Gaheris and Yvain, as well as his reconciled former enemies, like Galehaut, Pellinore and Lot. Several of the most notable Knights of the Round Table, among them Bedivere, Gawain and Kay, are based on older characters from a host of great warriors associated with Arthur in the early Welsh tales. Some, such as Lancelot, Perceval and Tristan, feature in the roles of a protagonist or eponymous hero in various works of chivalric romance. Other well-known members of the Round Table include the holy knight Galahad, replacing Perceval as the main Grail Knight in the later stories, and Arthur's traitorous son and nemesis Mordred.

Parzival (German pronunciation: [ˈpaʁtsifal]) is a medieval chivalric romance by the poet and knight Wolfram von Eschenbach in Middle High German. The poem, commonly dated to the first quarter of the 13th century, centers on the Arthurian hero Parzival (Percival in English) and his long quest for the Holy Grail following his initial failure to achieve it.

Parzival begins with the knightly adventures of Parzival's father, Gahmuret, his marriage to Herzeloyde (Middle High German: herzeleide, "heart's sorrow"), and the birth of Parzival. The story continues as Parzival meets three elegant knights, decides to seek King Arthur, and continues a spiritual and physical search for the Grail. A long section is devoted to Parzival's friend Gawan and his adventures defending himself from a false murder charge and winning the hand of the maiden Orgeluse. Among the most striking elements of the work are its emphasis on the importance of humility, compassion, sympathy and the quest for spirituality. A major theme in Parzival is love: heroic acts of chivalry are inspired by true love, which is ultimately fulfilled in marriage.

Chrétien de Troyes (Modern French: [kʁetjɛ̃ də tʁwa]; Old French: Crestien de Troies [kresˈtjẽn də ˈtrojəs]; fl. c. 1160–1191) was a French poet and trouvère known for his writing on Arthurian subjects such as Gawain, Lancelot, Perceval, and the Holy Grail. Chrétien's chivalric romances, including Erec and Enide, Lancelot, Perceval, and Yvain, represent some of the best-regarded works of medieval literature. His use of structure, particularly in Yvain, has been seen as a step toward the modern novel.

Lancelot du Lac (French for Lancelot of the Lake), alternatively written as Launcelot and other variants, is a popular character in the Arthurian legend's chivalric romance tradition. He is typically depicted as King Arthur's close companion and one of the greatest Knights of the Round Table, as well as a secret lover of Arthur's wife, Guinevere.

In his most prominent and complete depiction, Lancelot is a beautiful orphaned son of King Ban of the lost kingdom of Benoïc. He is raised in a fairy realm by the Lady of the Lake while unaware of his real parentage prior to joining Arthur's court as a young knight and discovering his origins. A hero of many battles, quests and tournaments, and famed as a nearly unrivalled swordsman and jouster, Lancelot soon becomes the lord of the castle Joyous Gard and personal champion of Queen Guinevere, to whom he is devoted absolutely. He also develops a close relationship with Galehaut and suffers from frequent and sometimes prolonged fits of violent rage and other forms of madness. After Lady Elaine seduces him using magic, their son Galahad, devoid of his father's flaws of character, becomes the perfect knight that succeeds in completing the greatest of all quests, achieving the Holy Grail when Lancelot himself fails due to his sins. Eventually, when Lancelot's adulterous affair with Guinevere is publicly discovered, it develops into a bloody civil war that, once exploited by Mordred, brings an end to Arthur's kingdom.

Galahad (/ˈɡæləhæd/), sometimes referred to as Galeas (/ɡəˈliːəs/) or Galath (/ˈɡæləθ/), among other versions of his name (originally Galaad, Galaaz, or Galaaus), is a knight of King Arthur's Round Table and one of the three achievers of the Holy Grail in the Arthurian legend. He is the illegitimate son of Sir Lancelot du Lac and Lady Elaine of Corbenic and is renowned for his gallantry and purity as the most perfect of all knights.

Emerging quite late in the medieval Arthurian tradition, Sir Galahad first appears in the early 13th-century Lancelot–Grail prose cycle. There and in subsequent works, such as the Post-Vulgate Cycle and Le Morte d'Arthur, he has replaced Perceval, introduced in the late 12th century, as the main Grail hero.

Parsifal (WWV 111) is a music drama in three acts by the German composer Richard Wagner and his last composition. Wagner's own libretto for the work is freely based on the 13th-century Middle High German chivalric romance Parzival of the Minnesänger Wolfram von Eschenbach and the Old French chivalric romance Perceval ou le Conte du Graal by the 12th-century trouvère Chrétien de Troyes, recounting different accounts of the story of the Arthurian knight Parzival (Percival) and his spiritual quest for the Holy Grail.

Wagner conceived the work in April 1857, but did not finish it until 25 years later. In composing it he took advantage of the particular acoustics of his newly built Bayreuth Festspielhaus. Parsifal was first produced at the second Bayreuth Festival in 1882. The Bayreuth Festival maintained a monopoly on Parsifal productions until 1914, however the opera was performed at the Metropolitan Opera in New York in 1903 after a US court ruled that it was legal.

Le Morte d'Arthur (originally written as le morte Darthur; Anglo-Norman French for "The Death of Arthur") is a 15th-century Middle English prose compilation and reworking by Sir Thomas Malory of tales about the legendary King Arthur, Guinevere, Lancelot, Merlin and the Knights of the Round Table, along with their respective folklore, including the quest for the Holy Grail and the legend of Tristan and Iseult. In order to tell a "complete" story of Arthur from his conception to his death, Malory put together, rearranged, interpreted and modified material from various French and English sources. Today, this is one of the best-known works of Arthurian literature. Many authors since the 19th-century revival of the Arthurian legend have used Malory as their principal source.

Apparently written in prison at the end of the medieval English era, Le Morte d'Arthur was completed by Malory around 1470 and was first published in a printed edition in 1485 by William Caxton. Until the discovery of the Winchester Manuscript in 1934, the 1485 edition was considered the earliest known text of Le Morte d'Arthur and that closest to Malory's original version. Modern editions under myriad titles are variable, changing spelling, grammar and pronouns for the convenience of readers of modern English, as well as often abridging or revising the material.

Avalon (/ˈævəlɒn/) is an island featured in the Arthurian legend. It first appeared in Geoffrey of Monmouth's 1136 Historia Regum Britanniae as a place of magic where King Arthur's sword Excalibur was made and later where Arthur was taken to recover from being gravely wounded at the Battle of Camlann. Since then, the island has become a symbol of Arthurian mythology, similar to Arthur's castle, Camelot.

Avalon was associated from an early date with mystical practices and magical figures such as King Arthur's sorceress sister Morgan, cast as the island's ruler by Geoffrey and many later authors. Certain Cornish and Welsh traditions have maintained that Arthur is an eternal king who had never truly died but would return as the "once and future" king. The particular motif of his rest in Morgan's care in Avalon has become especially popular. It can be found in various versions in many French and other medieval Arthurian and other works written in the wake of Geoffrey, some of them also linking Avalon with the legend of the Holy Grail.

Perceval (/ˈpɜːrsɪvəl/, also written Percival, Parzival, Parsifal), alternatively called Peredur (Welsh pronunciation: [pɛˈrɛdɨr]), is a figure in the legend of King Arthur, often appearing as one of the Knights of the Round Table. First mentioned by the French author Chrétien de Troyes in the late 12th century tale Perceval, the Story of the Grail, he is best known for being the original hero in the quest for the Grail before being replaced in later literature by Galahad, first introduced in the early 13th century.