Floris Radewyns (or Latinized Florentius Radwyn) (c. 1350 – 24 March 1400) was the co-founder of the Brethren of the Common Life.
There he powerfully seconded his friend's apostolate, especially among the poor clerical scholars of Deventer, and at his suggestion and in his house the first community of the Brethren of the Common Life was formed.
[1] They lived on the income of their book copying, permitting them to teach young men of humbler circumstances who demonstrated a potential for full-time religious life.
It was also from his house that the six brethren who established the Congregation of Windesheim went forth in 1386, and among them John, the elder brother of Thomas à Kempis.
He wrote a loving and edifying sketch of his master, wherein he describes Florens as a man learned in the Scriptures and all sacred science, exceedingly devout, humble, simple, zealous, charitable and excessively mortified.