From 1313 to 1341, Özbeg Khan oversaw what is normally  described as the Golden Horde’s Golden age. As our last episode on Özbeg discussed, things were not going quite so golden for old Özbeg. The appellation of golden age belies the troubles which were growing ready to rock the Golden Horde. As our last episode looked at Özbeg and the Golden Horde’s relations south and east, with the other Mongol khanates and the Mamluk Sultanate, today we take you west and north, to see how Özbeg interacted with the powers of Eastern Europe and the Rus’ principalities. I’m your host David, and this is Kings and Generals: Ages of Conquest.   What appears almost shocking at a cursory glance, is that despite so many authors claiming Özbeg’s glory, he also oversaw its first loss of Golden Horde territory. We’ll begin in the Balkans, and work our way north. On his accession, Özbeg had continued the policy of the late Toqta Khan, by keeping the Bulgarian lands a part of the Horde, backed up by Mongol military presence. Özbeg’s support was important for the Bulgarian tsars in this period: the Tsar from 1323 to 1330, Georgi Terter’s son Michael Shishman, relied heavily on Mongol military support and kept one of his sons at Özbeg’s court as a royal hostage. At the battle of Velbuzjd in 1330, a Bulgarian and Mongol army was defeated by the Serbians, in which Tsar Micheal Shishman was killed. The threat of a military response from Özbeg is probably what kept the Serbians from pressing their advantage. The journey of a Bulgarian embassy to Cairo in 1331 resulted in the Mamluk chronicler al-Umarī to report that despite fighting between the Bulgarians and Serbs, both respected Özbeg due to his great power over them. Though it was not comparable to the influence Nogai had once wielded over the region, the presentation of contemporary chronicles is that the Bulgarian lands remained dependent on the Golden Horde; Bulgaria, for example, was the base from which the Mongols launched attacks on Byzantium, rather than seen as a country they passed through. It was the eventual loss of this Mongol backing that would result in Bulgaria’s vulnerability to Ottoman expansion at the end of the century.    Like Toqta, Özbeg too married an illegitimate daughter of the Byzantine Emperor, this time of Andronikos III in 1331. This wife was called by the Mongols Bayalun Khatun, and Ibn Battuta accompanied her when she returned to Constantinople to give birth. The impetus was to dissuade further attacks by Özbeg, for Özbeg had resumed raiding the Byzantine Empire. Annual attacks from 1321 to 1323, the largest coming in 1323 and causing a great deal of damage. Raids at first ceased with the marriage of 1331, but when Bayalun refused to come back to the Horde after returning to Constantinople to give birth, attacks resumed. The last recorded assault came in 1337, advancing as far as the Hellespont. Supposedly in response to the failure of Constantinople to supply its annual tribute, the Horde army spent 50 days plundering Thrace, and in the process defeated a Turkish force sent across the straits by a growing beylik in northwestern Anatolia, the Osmanoğlu. Though you may know them better as the Ottomans. So ended the last recorded attack by the Golden Horde on the Byzantine Empire. Sometimes this is compared as a symbolic act, the passing of the torch from Mongol to Ottoman, from old conqueror to new, when it came to the main threat to the region. In 1341 a Byzantine embassy was sent to the Horde to mollify Özbeg, but arrived after his death.   While in truth Özbeg’s attacks on the Byzantine Empire were raids rather than efforts at conquest, he apparently played them up somewhat in his own court as great victories over Christian powers. Ibn Battuta, during his visit to Özbeg, presents the Khan as a great victor over the enemies of God who undertook jihad against Constantinople. Özbeg, it must be clarified, never showed any attempt at conquering that famous city, and his military