A few years afterwards, a Fleming named Rubruquis was sent on a similar mission, and had the merit of being the first traveller of this era who gave a correct account of the Caspian Sea.
We only know of Andrew through references in other writers: see especially William of Rubruquis in Recueil de voyages, iv.
Again in 1252 St Louis (who had already begun to negotiate with the Mongols in the winter of 1248-1249) sent the friar William of Rubruquis to the court of the great khan; but again nothing came of the mission save an increase of geographical knowledge.
277, and Carpini and Rubruquis, 269-270.
In the narrative of William Rubruquis (1253), though distinct reference is made to the conquering Gur Khan under the name of Coir Cham of Caracatay, the title of "King John" is assigned to Kushluk, king of the Naimans, who had married the daughter of the last lineal representative of the gur khans.(fn 2) And from the remarks which Rubruquis makes in connexion with this King John, on the habit of the Nestorians to spin wonderful stories out of nothing, and of the great tales that went forth about King John, it is evident that the intelligent traveller supposed this king of the Naimans to be the original of the widely spread legend.
De Plano Carpirti (1247), Thabet; Rubruquis (12J3), Marco Polo (1298), Tebet; Ibn Batuta (1340), Thabat; Ibn Haukal (976), Al Biruni (1020), Odoric of Pordenone (c. 1328), Orazio della Penna (1730), Tibet, which is the form now generally adopted.