Adelelmus of Burgos was an 11th-century Benedictine monk and abbot born in Loudun, France. After serving in the military, he transitioned to religious life following a meeting with Robert de Turlande during a pilgrimage to Rome. He eventually served as the abbot of La Chaise-Dieu. Due to his reputation for holiness, he was invited to Spain by Queen Constance of Burgundy and King Alfonso VI to lead a newly established monastery in Burgos, where he also expanded the site by adding a church and a hospital.