After the dying of Ivan Assen probably the most influential boyar households began bloody internecine struggles for the throne, which have been skilfully utilized by Byzantium for enhancing its affect among the many Bulgarian aristocracy. In the course of the reign of Konstantin Assen( 1257-1277), who lacked will energy and was incapable as a ruler, quite a lot of feudal lords separated themselves from the central energy, whereas the Byzantines conquered huge Bulgarian territories in Thrace and Macedonia. Konstantin Assen married the Byzantine princess Maria, after which the Byzantines started brazenly to command in Turnovo.
The unceasing feudal internecine struggles and the frequent incursions by Byzantine troops resulted in financial break and sharp deterioration of the scenario of the peasant plenty, which turned disastrous when the Tartars made their look within the North – a quite a few and belligerent individuals from the steppes who had already subordinated a lot of the divided Russian principalities. The boyars, hidden behind the stone partitions of their fort-resses, left the defenceless peasants on the mercy of the Tartars. Konstantin Assen himself turned a vassal of the Tartar Khan Nogai,
The individuals, left to themselves, had to consider their very own defence. On this battle, the title of the swineherd Ivailo from Northeastern Bulgaria gained ever growing recognition. In 1277 on the head of a gaggle of dare-devils, he routed a number of Tartar detachments which had got down to loot the villages. Ivailo’s glory unfold with lightning velocity all through the nation and shortly he had gathered a complete military underneath his colors, consisting primarily of determined peasants searching for safety. The Tartars have been chased to the opposite financial institution of the Danube after which got here the flip of the avid and venal boyars, who had brought on to the individuals much more sufferings than the Tartars.
Within the type of mediaeval superstition
Within the type of mediaeval superstition, Ivailo declared that he had heard a voice from heaven ordering him to avoid wasting his individuals from those that looted and tortured them. The peasant volunteers in his military, who had risen to defend their land and houses from the overseas invaders, changed into an rebel military which captured quite a lot of feudal castles, storehouses for meals and arms and was headed for the capital. The tsar, who had not dared come out of Turnovo’s partitions whereas Ivailo’s peasant forces have been shedding their blood to repel the Tartars, rallied his military and set out towards Ivailo’s ‘rabble’. The latter, steeled within the merciless battles with the Tartar hordes, defeated the military of the Tsar within the very first encounter. The Tsar himself fell within the battle.