Maximus, Metropolitan of all Rus was a Greek-born prelate who served as the metropolitan bishop of Kiev and all Rus' from 1283 until his death in 1305. Consecrated in Constantinople, he relocated the metropolitan see to Vladimir during his tenure. He played an active role in regional politics, traveling to the Golden Horde and acting as a mediator between competing Rus' princes. His leadership included supporting the claims of Mikhail Yaroslavich and participating in the patriarchal council of 1301.