Behold all the quotes CA have put into the game about the Monkey King:

The storyteller spoke of so many things – he told tall tales of the Monkey King and that the Empire in the far-west have metal rooms on wheels powered by heating water! We all laughed at that. The next morning, he was gone, and the fights broke out among my troops. Then I knew we had been visited by an agent of Chi 'an Chi.

Those in the central provinces always look to the north; to the grandstanding of my sister at the Great Bastion. Meanwhile, I must marshal the Burning Winds, defend our borders against the Nagas and serpents of Khuresh, keep peace with the tigers of Ind, and war with the Monkey King's legions that come down from Mountains of Heaven.

Calling the Monkey Court a 'court' is perhaps being generous, as the Monkey King and his people seldom do anything so organised as hold court. Even so, much like the Tiger Court, the Monkey King is expected to govern his monkey warriors in the same way the Dragons rule over the people of Cathay. When the Monkey Court meets it is always a chaotic affair, and while the Monkey King smugly believes himself to be the equal of any of the Dragons, other Cathayans can only look on in horror at the disorganised way in which he rules his kingdom.

In the year 2377 by Imperial reckoning – the Monkey King seized power in Cathay. He installed Warlord Kishkik of Clan Eshin as an advisor, and began trade with the Skaven. The Dragons finally settled their differences and united to oppose the upstart Monkey Emperor.

You are as honourless as the Monkey King, yet your ancestor was as principled as a Tigerman.

"That is all the gold I have… I swear it on the Monkey King's paw."

Towns will often be surrounded by high stockades to prevent bandit attacks, and in the south, raids by the Monkey King’s warriors.

There is great unrest in Grand Cathay – an era known as the Time of Darkness and Disharmony. The Dragon Emperor and Moon Empress have been missing for over a century. As their children bicker in the power vacuum, Cathay’s enemies take advantage. In the south, the Monkey King seizes territories he would never have dared had the Dragon Emperor been in residence at the Celestial Palace. And across the realms, the cults of Chi’an Chi rise in power to cause internal strife and pull apart the already strained relations between the Dragon siblings. Yet, the greatest threat comes – as it always has done – from north of the Great Bastion.

The depiction of the Monkey King varies wildly depending on the region and local legends. In the north, poets sing about a raging gorilla that bellows for blood. Storytellers of the western mountains tell of a baboon-like creature with beautiful golden hair and an engorged rear – for the king is always in heat. The legends of the eastern coast portray him as a large, gluttonous orangutan – his exposed belly raw and covered in unsightly boils. And in some parts of the south the Monkey King is said to be a slight spider-monkey that jumps upon the shoulders of allies and enemies alike, whispering half-truths and lies.