After about three weeks of inactivity, Diarmait and Fitz-Stephen's forces attacked the territory of Osraighe (anglicized Ossory) on Leinster's western border.
Setelah sekitar tiga minggu tidak aktif, pasukan Diarmait dan Fitz-Stephen menyerang wilayah Osraighe (Ossory) di perbatasan barat Leinster.