The theme of the search for the Grail, beautiful object and a source of life, is fundamental in the French-Germanic medieval literature, and its origin is mainly in the works of Chretien de Troyes, who left his work Perceval or the The Story of the Grail unfinished around 1190; the nature of this jewel is not explained here, and it was Wolfram von Eschenbach who gave it the shape of a chalice in his poem “Perceval el Galés”.

It is believed that he conceived his Parsifal at the beginning of the 13th century, in the Wartburg, a mythical castle, the birthplace of poets and troubadours; and that he finished it in 1215. There, in this castle, where these Love singers, these Master Singers, whose three main rules, God, his lord and the beloved woman, constituted the source of their inspirations, Wolfram composed his great work. Wolfram von Eschenbach was the prince of the troubadours, the highest figure along with Walter von der Vogelweide and Heinrich Tannhäuser.

Recent research, such as that of Michael Hesemann – “Die Entdeckung des Heiligen Grals. Das Ende einer Suche”, Ed. Pattloch 2003 –, place the origin of these legends in Spain and on the basis of the agate chalice of San Juan de la Peña, and we cannot forget that they were the source of inspiration for the great poetic-musical works by Richard Wagner “Tannhäuser”, “Parsifal” and “Lohengrin”.