Age of Empires II, Definitive Edition - Tsar Ivaylo, Echoes of Heroes, mission 4

After the battle was over, disaster struck the city of Tarnovo while Ivaylo was busy defending Drastar, his wife the Tsarina and his child had been abducted by Ivan Asen who was able to enter the city thanks to the treacherous Bolyars and all of Ivaylo's men got murdered, now with the Tsarina and Ivaylo's child as prisoners the Byzantines expect Ivaylo to surrender but that's not gonna happen yet, Ivaylo plans to get revenge at the Balkan mountainous passages against the Byzantines, if he manages to win there in disadvantage, he would have achieved a impossible victory. However his future will be dark as he was no longer considered a Tsar by the Bolyars, they inmediately replaced him in Tarnovo by a new Tsar, Georgi Terter, a descendant of the Cuman leader Kotyan Khan.