Antioch was eventually betrayed to Bohemund by an Armenian guard, and Robert was among the first to enter the city, but only a few days later they were themselves besieged by Kerbogha of Mosul.
Antiokhia akhirnya dikhianati dari Bohemond oleh seorang penjaga Armenia, dan Robert berada di antara rombongan pertama yang memasuki kota, namun hanya beberapa hari kemudian mereka dikepung oleh Kürboğa dari Mosul.