Le Morte d'Arthur was first published in 1485 at the end of medieval English era by William Caxton, who changed its title from the original The Whole Book of King Arthur and of His Noble Knights of the Round Table (The Hoole Book of Kyng Arthur and of His Noble Knyghtes of The Rounde Table). Malory was first arrested and imprisoned in 1451 for the ambush of Buckingham, but was released early in 1452. He rides out, pursued by Launcelot, and asks Launcelot to be made knight. They meet Percivale’s sister on an enchanted ship, where there is a sword and scabbard invested with holiness because of their connection to a Biblical figure and early guardian of the Holy Grail, Joseph of Arimathea. Many authors since the 19th-century revival of the legend have used Malory as their principal source. Caxton's print version is abridged by more than half compared to Malory's manuscript. Arthur is sorry to see so many of his knights leave on the quest, since he knows most of them will not be worthy enough to achieve it. After they leave to pursue Lancelot in France, where Gawain is mortally injured in a duel with Lancelot, Mordred seizes the throne and takes control of Arthur's kingdom. All the lords gather and each attempts to draw the sword out, but none proves able. But when he comes back, Ector recognizes it, and they return to the stone so that Arthur can prove he managed to pull it out himself. Winchester College headmaster Walter Fraser Oakeshott discovered a previously unknown manuscript copy of the work in June 1934, during the cataloging of the college's library. In this first book, Malory addresses his contemporary preoccupations with legitimacy and societal unrest, which will appear throughout the rest of the work. Malory attempts to turn the focus of courtly love from adultery to service by having Lancelot dedicate doing everything he does for Guinevere, but avoid (for a time being) to committing to an adulterous relationship with her. The manuscript has been digitised by a Japanese team, who note that "the text is imperfect, as the manuscript lacks the first and last quires and few leaves. Meanwhile, Launcelot—who maintains an affair with Queen Guenever, to whom he is loyal for the entire book—is tricked into sleeping with Elaine of Corbin, who gives birth to Galahad, a knight fated to surpass even his father in greatness. [17], Malory scholar Eugène Vinaver examined the manuscript shortly after its discovery. For example, Gawain is often dubbed a secular knight, as he refuses to do penance for his sins, claiming the tribulations that coexist with knighthood as a sort of secular penance.