Eustache also known as Eustace or Eustase of Bourges or Autun where he originated, was a 6th-century priest who became bishop of Bourges. [1] [2] He trained at the Abbey of Saint-Symphorien, Autun.
Eustache first became deacon and archdeacon of Autun, [3] was elected archbishop of Bourges, after the death of Severe Sulpice on 29 January 591 and was the 20th to occupy the episcopal see, he left to his successor Apolinaire. [4] In Bourges the Roman Catholic Church honoured him as a saint on 31 December. [5]