A bishop of Numidia martyred at Constantine in 259 during Valerian’s persecution of the clergy, remembered with several named companions.

Saint Secondinus was a bishop in the Roman province of Numidia, North Africa, martyred at Constantine in 259 during the emperor Valerian’s persecution, which specifically targeted Christian clergy. He died together with companions Agapius, Tertulla, Antonia, and Emilian, and his memory has been preserved as part of Numidia’s ancient tradition of bishop-martyrs.

Quick Facts

• Died: 259 (Constantine, Numidia, present-day Algeria)
• Venerated as: Bishop and martyr
• Companion of: Saint Agapius, Saint Tertulla, Saint Antonia, and Saint Emilian

Who Was Saint Secondinus?

Saint Secondinus served as a bishop in the Roman province of Numidia, in North Africa, and was martyred at Constantine in the year 259, during the persecution launched under the emperor Valerian, who specifically targeted Christian clergy and bishops.

Historical Setting

Valerian’s persecution, beginning in 257, marked a deliberate escalation from earlier, more sporadic campaigns: his edicts ordered the execution of bishops and priests and the confiscation of Christian property, aiming to decapitate the Church’s leadership. North Africa’s episcopate, one of the most developed in the empire, suffered heavily, and Numidia in particular produced a substantial number of bishop-martyrs during this period.

Why the Church Remembers Saint Secondinus

Secondinus is remembered as a shepherd who died for refusing to abandon his flock or his office under Valerian’s targeted persecution of the clergy, sharing that fate with named companions who appear to have died alongside him or in the same local persecution.

Canonization and Feast Day

No formal canonization process for Secondinus is recorded, as is expected for a bishop-martyr of this period. His cult is ancient, preserved through the memory of the Numidian church rather than through any later confirmation.

What Catholics Can Learn Today

Secondinus’s death as a bishop specifically targeted for his office is a reminder of how costly church leadership could be in the empire’s periods of active persecution. His example challenges anyone entrusted with responsibility for others to ask whether they would remain at their post under real pressure to abandon it.

A Prayer to Saint Secondinus

Saint Secondinus, bishop who did not abandon your flock even under Valerian’s persecution, intercede for bishops and pastors today who face pressure or danger in their ministry. Give them the same fidelity you showed at Constantine.

Sources

• Roman Martyrology
• Butler’s Lives of the Saints
• New Advent Catholic Encyclopedia
• Acta Sanctorum