Thomas à Kempis (1380 - 1471)

Thomas à Kempis, C.R.S.A. (Thomas van Kempen or Thomas Hemerken or Haemerken, litt. "small hammer"; c. 1380 – 25 July 1471) was a canon regular of the late medieval period and the most probable author of The Imitation of Christ, which is one of the best known Christian books on devotion.