The oldest of the doctrinal standards of the Christian Reformed Church is the Confession of Faith, popularly known as the Belgic Confession, following the seventeenth-century Latin designation "Confessio Belgica." "Belgica" referred to the whole of the Netherlands, both north and south, which today is divided into the Netherlands and Belgium. The confession's chief author was Guido de Bräs, a preacher of the Reformed churches of the Netherlands, who died a martyr to the faith in the year 1567.