813:
Crowned following the assassination of Michael I, Leon immediately set out for war in Armenia, leaving his younger brother Michael in charge as Regent (which annoyed the Basileus' adult son Bardas). He demanded the King, who had adopted local customs while retaining religious fealty to the Caliph, surrender a province in Coloneia. The King gave it up, hoping to avoid conflict. Leon invaded Armenia anyway, in an attempt to conquer the Emirate of Mesopotamia. The war lasted the best part of the year, with a famous battle in Cherson, where the Basileus' youngest brother, the local Strategos Ioustinianos fought the army of the Caliph, who defended their tributary state. Leon led his army into battle, defeating and capturing the King. Peace was signed, and Mesopotamia became part of the Empire. Leon used his victory as justification for the restoration of Iconoclasm, declaring that the idolatry of his predecessors weakened the Empire.
814:
Fearing the Assassin, Leon remained in Armenia. However he was shocked to discover the news that the King died in his sleep, with suspicions of murder arising. Leon decided to take advantage of the situation by demanding the southern portion of Tao, which was handed over. Leon then invaded to seize the Emirate of Armenia. This war lasted into the following year. Bardas had a son who he named Basileios.
815:
In January the war with Armenia ended when Leon captured the young King in a siege. The King fled to his ancestral holding of Edessa, while his vassals in Georgia declared independence. However he quickly put the rebels down.
816:
Leon caught Typhus but recovered. He maintained his stay in Armenia, bringing his wife Eudokia, which led to the conception of their second son Konstantinos.
817:
Leon decided to crown his young son as Symbasileus, enraging Bardas who had refused to accept the Iconoclast Restoration. Michael also showed his disgruntlement at the decision, citing Leon's ill health caused by excess weight and the risk of Bardas overturning their efforts to restore Iconoclasm. Carpathia asked Leon to help them convert to Iconoclasm. Leon agreed, and he oversaw the baptism of the Empress, the heiress of Radoslav the Blind.
818:
Leon finally restored the office of the Iconoclast Patriarch, which had been left vacant after the Council of Constantinople in 787.
819 + January 1st 820:
Leon visited Carpathia to see how the Empress and her subjects were getting on. He was left disappointed in the effort, or rather lack of, made to convert Carpathia to Iconoclasm. A number of vassals were murdered in their sleep, which signaled to Leon that the Assassin was at large once more. He returned to Constantinople, deciding to relieve his brother of his duties for failing to deal with the Assassin. Before he could find Michael however, he was ambushed. "Hello, you have something belonging to me" the Assassin said. "What?" exclaimed Leon. "That crown is mine, and you know it". Leon tried to call for his guards, but the Assassin chuckled, "They can't hear you". Leon said "What do you want, gold, land, women, you've got to want something?" The Assassin said "Your crown, and I'm willing to swap it for something you've always wanted". "What could you give me?" Leon asked. The Assassin said "Mother's approval, brother. This was all her idea, of course I expanded on it when she died 20 years ago, but killing Brother was her idea, not mine or Sister's." "Michael, you traitor, guards!" Michael took his dagger out and stabbed Leon in the heart. Leon's final view of the world was watching his brother take the crown off his head and place it on his own. He then bellowed "Let the games begin".....