Guido de Brès: The Martyr Who Wrote the Belgic Confession

Ordained Minister, M.Div.
March 28, 2026
3 min read

Behind every great confession of faith stands a human story. The story behind the Belgic Confession is one of extraordinary courage, pastoral devotion, and ultimate martyrdom. Guido de Brès was not a safe man writing from a comfortable study. He was a pastor in hiding, shepherding a persecuted church, and he paid for his convictions with his life.
Early Life and Conversion
Guido de Brès was born around 1522 in Mons, in the Spanish-controlled province of Hainaut (now southern Belgium). He came from a family of craftsmen and was drawn to the Reformed faith through the influence of Protestant preaching and Scripture. As a young man he left the Low Countries for England, where he encountered the Reformed theology that would shape the rest of his life.
Pastoral Ministry in Dangerous Times
De Brès returned to the Low Countries as a Reformed minister, moving from city to city under constant threat of arrest. Philip II of Spain had inherited the Low Countries from his father Charles V and was determined to stamp out Protestantism. De Brès ministered secretly, often in private homes and barns, gathering congregations of believers who risked their lives to hear the gospel.
Writing the Confession
In 1561, de Brès composed his confession of faith in French, drawing heavily on the French Reformed Confession of 1559 and the thought of John Calvin. He threw a copy over the castle walls at Doornik, along with a letter to the king, pleading that the Reformed believers were not seditious rebels but peaceful Christians. The authorities were not persuaded. De Brès had to flee, and his wife and children were arrested in his place.
Arrest and Martyrdom
De Brès continued his ministry for several more years before being captured in 1567 during the Duke of Alba's brutal crackdown on Protestantism in the Low Countries. He was imprisoned, tried, and condemned. During his imprisonment he wrote letters of extraordinary comfort and encouragement to his wife and congregation. On May 31, 1567, he was hanged. He was forty-five years old.
The confession de Brès died for was revised and adopted at the Synod of Dort in 1619 and has been the doctrinal standard of Reformed churches in the Dutch tradition ever since. In his death, de Brès joined the long line of martyrs whose blood, as Tertullian wrote, is the seed of the Church. For the full history and documentary sources of the Belgic Confession, Gootjes' research is the definitive scholarly treatment.


