Analysis of information sources in references of the Wikipedia article "Tristan" in English language version.
Amongst all the extant romances, Beroul's Tristan has a special claim on our attention not merely because it happens to be the oldest but because it comes closest to preserving what may be called the raw material of the legend.
In 1534 appeared Coronica nueuamente emendafa y ariadida del been cavallero don Tristan de Leonis y del rey don Tristan de Leonis el joven su hijo ("Newly Revised and Expanded Chronicle of the Great Knight Sir Tristan of Leonis and His Son, King Tristan of Leonis, the Younger"), a reworking of the Libro, followed by a sequel recounting the adventures of the lovers' children, Tristan and Yseo. .... It was translated into Italian as I due Tristani ("The Two Tristans") and published in 1555 in Venice.