Robert Grosseteste was an unusual combination of scientist and theologian, acclaimed by modern theorists as "...the central figure in England in the intellectual movement during the first half of the thirteenth century." Grosseteste wrote prolifically on philosophy, astronomy, and science, and diligently encouraged the addition of a greater number of scientific subjects to the curriculum of the university of his time.

Information about Grosseteste's life until he reached his early fifties is virtually non-existent. Even the exact year of his birth is uncertain. He was, however, born in Suffolk County, probably in a little town called Stow Langtoft. His family were not wealthy, and survival during the first half of his life was most likely difficult. He had a sister, Juetta (or Ivetta), who became a nun, and letters written by him indicate he may have had relatives who were clergymen. He was admired for his knowledge of...