During his brother's reign, he participated in the taking of Huesca (the Battle of Alcoraz, 1096), which became the largest city in the kingdom and the new capital.
Selama pemerintahan saudaranya, ia berpartisipasi di dalam pengambilan Huesca ( Pertempuran Alcoraz, 1096), yang menjadi kota terbesar di kerajaan dan ibukota yang baru.