Saint Eustochius (also Eustachius) was the fifth bishop of Tours from 443 to 460. He was succeeded by his close relative, Saint Perpetuus. His extremely rare name suggests a possible connection to Saint Eustochium. T. S. M. Mommaerts and D. H. Kelley make the point that his father was Eustochium's brother, Julius Toxotius the Younger, and that his maternal grandfather was Publius Ceionius Caecina Albinus, of the Ceionii Volusiani.
T. S. M. Mommaerts and D. H. Kelley, The Anicii of Gaul and Rome, in Fifth-century Gaul: a Crisis of Identity?, ed. by John Drinkwater and Hugh Elton, (Cambridge University Press, Cambridge & New York, 1992), 120–121.
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