Pacian was a 4th-century Spanish prelate who served as the bishop of Barcelona from approximately 365 until his death in 391. A priest and writer, he is recognized as a Father of the Church due to his significant theological contributions. He was the father of Nummius Aemilianus Dexter, a high-ranking official under Theodosius I. His theological works addressed important subjects such as baptism, ecclesiastical discipline, and the primacy of the papacy, often in response to the Novatianist movement.
Life and writings

During his tenure as bishop, Pacian produced several important texts, including a short treatise titled Paraenesis ad Poenitentiam. His surviving writings consist of three letters and this treatise, which focus on penance and church order. He is famously associated with the phrase stating that while his name is Christian, his surname is Catholic. His intellectual capabilities and holiness were noted by Jerome, who praised his learning and eloquence.
Veneration and legacy
As a saint in the Catholic tradition, his feast day is observed on March 9. Recent linguistic studies have suggested that his writings might contain early traces of the Catalan language, evidenced by specific terms and expressions used in his Latin texts. His legacy continues through his historical influence on early Christian doctrine and his recognition within the pre-schism traditions.
