Saint Sidronius (died ) was a Roman martyr. His life is confused with a French saint of the same name. His feast date is 8 September or 11 July.
Church
The village of Saint-Cydroine in the commune of Laroche-Saint-Cydroine near Sens in Yonne, France, is named after the saint. It is said that Sidronius was martyred here by the Romans, and a spring here with miraculous powers was a place of pilgrimage in the Middle Ages. The Saint Cydroine Church is an 11th- or 12th-century Romanesque church with an octagonal tower in the village dedicated to the saint. It was founded by the abbey of La Charité-sur-Loire.
Monks of Ramsgate account
The monks of St Augustine's Abbey, Ramsgate, wrote in their Book of Saints (1921),
Baring-Gould's account
Sabine Baring-Gould (1834–1924) wrote in his Lives of the Saints (1897),
Butler's account
The hagiographer Alban Butler ( 1710–1773) wrote in his Lives of the Primitive Fathers, Martyrs, and Other Principal Saints, under April 9,