Having been joined by Katakalon Kekaumenos and sent his family to safety, Isaakios felt able to advance. He set out across th Sangarios to get control of Nicaea, so that he might have the city as a base or refuge, however the scale of fortune turned for him. Though this was his first such campaign, he organised his soldiers in a careful and professional way. He was joined by many supporters of every kind. He cut off routes to the city to establish a blockade, while Michael VI was passive