Thomas Fiesvet or Fievé, described as of Penenche, was a cleric of the diocese of Cambrai, master of arts and bachelor of law in 1403.

He was a doctor of law in 1426, master regent in the same year, became rector of the University on March 24, 1427, and ecclesiastical judge of Nôtre Dame at Paris in 1429.

He was present only one day at the Trial (March 12), having been nominated, with Guillaume Evrard, and others, to represent the University at Bâle, where he arrived between the ninth and twenty-first of April, 1431