Henry II of Champagne vs Wanyan Aguda

Henry II married Isabella I of Jerusalem, becoming king-consort of the Kingdom of Jerusalem. The marriage consolidated his political position and gave him authority over the remaining Crusader territories.

Henry II participated in the negotiations that produced the Treaty of Jaffa between Richard the Lionheart and Saladin. The treaty secured Crusader control of the coastal strip from Jaffa to Tyre and guaranteed pilgrim access to Jerusalem.

Henry II fell from a window of his palace in Acre and died. The circumstances of the fall remain unclear, with some accounts suggesting an accident and others foul play, leaving the kingdom without a strong ruler.

Aguda's Jurchen forces defeated a Liao army at Hubudagang, marking the first major victory of the rebellion. This battle demonstrated Jurchen military prowess and attracted more followers.

Wanyan Aguda united the Jurchen tribes under his leadership, creating a confederation that rebelled against Liao domination. He organized a disciplined army and began the Jurchen revolt.

Wanyan Aguda proclaimed himself emperor, founding the Jin dynasty. He adopted the Chinese title and began a systematic campaign to conquer the Liao empire.

Aguda's forces captured the Liao supreme capital Shangjing, dealing a severe blow to the Liao dynasty. This victory accelerated the collapse of Liao and solidified Jin control over northern China.

Aguda formed an alliance with the Northern Song dynasty to jointly attack the Liao empire. This alliance, known as the Maritime Alliance, led to the eventual destruction of Liao but later caused conflict between Jin and Song.

Wanyan Aguda died, and his brother Wanyan Wuqimai succeeded him. Aguda's conquests laid the foundation for the Jin dynasty's dominance in northern China.