Mikhail Stepanovich (1558 - 1711 MG) was one of the Great Husbands of Irina Ivanovna, Velikomat of the Matriarchate of Periaslavl. Much of his career was spent as a diplomat or along the border between Periaslavl and the Kreisens.
From the Books: "Mikhail Stepanovich, deemed the wisest as well as the oldest smiled broadly. Those visiting from the oblasts bordering the Kreisens cheered for him, knowing his tireless work had helped keep that border relatively peaceful." - IAAWT, p. 99