On 26 August 1057, the government's army was routed at the Battle of Petroe near Nicaea, and Isaac Komnenos advanced on Constantinople.
Pada tanggal 26 Agustus 1057, pasukan pemerintahan dialihkan ke Pertempuran Petroe didekat Nicaea, dan Isaakios I Komnenos maju ke Konstantinopel.