Merten de Keyser (born Martin Lempereur; died 1536) was a 16th-century French printer and publisher, working mainly in Antwerp.
[1][2] When a series of condemnations of evangelical works and a ban on Bible translations were issued in Paris in 1525, he moved to Antwerp.
[3] De Keyser published the second edition of Lefèvre's fivefold Psalter, the Quincuplex Psalterium, which contained the Psalms in five different Latin versions.
His Dutch publications included New Testaments (e.g. Dat nieuwe testament ons Heeren Jesu Christi met alder neersticheyt oversien, ende verduytst in 1525), Psalters, partial biblical translations and other religious works.
[6] Thomas Abell's Invicta Veritas, criticizing Henry VIII's divorce, also saw the light of day in the Merten de Keyser workshop in 1532.