Nicasius of Die

Nicasius of Die was a 4th-century bishop from Gaul, a region corresponding to modern-day France. He holds historical significance as one of a select group of only five Catholic bishops from the Western portion of the Roman Empire who participated in the First Council of Nicaea in 325 CE. The Council of Nicaea was a landmark event in early Christian history, aiming to establish doctrinal uniformity.

Sainthood and Veneration

Nicasius is recognized as a Saint in both the Roman Catholic Church and the Eastern Orthodox Church. His feast day is observed on March 20 in the Catholic tradition. In the Eastern Orthodox Church, his commemoration takes place on the "Sunday of the Fathers of the first Council," linking his veneration directly to the ecumenical council he attended.

Bishopric of Die

As Bishop of Die, Nicasius is the earliest bishop of this see for whom there is historical attestation. While the 17th-century historian Polycarpe de la Rivière proposed that Nicasius succeeded earlier bishops like St. Mars and St. Higer, these claims are considered largely unsubstantiated by other historical records.

Attendance at the Council of Nicaea

Nicasius's presence at the Council of Nicaea is noteworthy. The Western Roman Empire was represented by only four delegations: Rome, Carthage, Cordoba, and Die. These represented key regions of the West: Italy, Africa, Spain, and Gaul. It might have been expected that the primate of Gaul, the Archbishop of Lyon, would attend. However, the bishop of the smaller see of Die was present, leading to speculation about the reasons for this choice. One conjecture suggests that Nicasius, having Greek parents, was selected for his proficiency in the Greek language, possibly because the primate was unavailable due to health or age.