The Casbas Monastery, also known as the Monastery of Santa Maria de la Gloria, is in Casbas de Huesca, a municipality in the province of Huesca, Aragon, Spain. A Bien de Interés Cultural (National Monument), it was established in 1173 by Countess Oria de Pallars (or Aurea) with the support of her husband Arnau Mir, Count of Pallars Jussà, between 1124 and 1174, and the Bishop of Huesca, Esteve de Sant Martí. Bishop Esteve had previously been the abbot of the Cistercian Monastery of Poblet from 1160 until 1165. The first abbess was Isabel, who ruled over the 30 noblewomen who entered the community until 1182. The abbess of Casbas had civil and criminal jurisdiction over her lands beginning in 1178. The Benedictine community of women formally came under the auspices of the Cistercian order i