عبد الرحمن الناصر لدين الله
In 953, he was sent as ambassador for Emperor Otto I to the Caliph Abd-ar-Rahman III of Córdoba for three years. John had travelled by way of Langres, Dijon, Lyon, Avignon, and Barcelona (Parisse, "La vie de Jean", 17). From Barcelona, he had proceeded to Tortosa, then Zaragoza, and finally Córdoba. The purpose of this mission was to stop the attacks made by Andalusian adventurers from their base at Fraxinet. John of Gorze arrived in 953-954 with his companions at Córdoba with a letter from Otto as well as valuable gifts. John lived in a palace close to the caliphal palace in Córdoba.