Andronikos I Komnenos vs Hojo Ujitsuna

Andronikos I Komnenos led a revolt against the regency of Empress Maria of Antioch, entering Constantinople with popular support. He had the empress imprisoned and later executed, and then had the young emperor Alexios II strangled, making himself sole ruler.

Andronikos I instigated a massacre of Latin (Western European) residents in Constantinople, targeting merchants and their families. The violence killed thousands and severely damaged Byzantine relations with the West, contributing to the later Fourth Crusade.

Andronikos I initiated a reign of terror, executing numerous aristocrats and officials he suspected of disloyalty. His purges weakened the Byzantine nobility and military leadership, creating widespread fear and instability within the empire.

Andronikos I was overthrown by a popular uprising in Constantinople led by Isaac II Angelos. He was captured while trying to flee, and the mob subjected him to three days of torture, including having his hand cut off and an eye gouged out, before he was killed in the Hippodrome.

Hojo Ujitsuna captured Edo Castle from the Uesugi clan, expanding Hojo control into the Kanto region. This victory established the Hojo as a major power in the area and laid the foundation for their future dominance.

Hojo Ujitsuna successfully defended Odawara Castle against a siege by the Uesugi and their allies. The defense solidified Odawara as the Hojo stronghold and demonstrated Ujitsuna's military capability.

Hojo Ujitsuna led campaigns into Musashi Province, capturing several castles from the Uesugi. This expansion significantly increased Hojo territory and influence in the Kanto region.