Güyük's enthronement on 24 August 1246, near the Mongol capital at Karakorum, was attended by a large number of foreign ambassadors: the Franciscan friar and envoy of Pope Innocent IV, John of Plano Carpini and Benedict of Poland; Grand Duke Yaroslav II of Vladimir; the incumbents for the throne of Georgia; the brother of the king of Armenia and historian, Sempad the Constable; the future Seljuk Sultan of Rum, Kilij Arslan IV; and ambassadors of the Abbasid Caliph Al-Musta'sim and Ala ud din Masud of the Delhi Sultanate. According to John of Plano Carpini, Güyük's formal election in a great "kurultai", or diet of the tribes, took place while his company was at a camp called "Sira Orda", or "Yellow Pavilion," along with 3,000 to 4,000 visitors from all parts of Asia and eastern Europe, bearing homage, tribute, and presents. They afterwards witnessed the formal enthronement at another camp in the vicinity called the "Golden Ordu," after which they were presented to the emperor. Mosul submitted to him, sending envoys to that assembly.