Saint Hesychius occurs in the Martyrologium Hieronymianum under the date of 16 March. (The website Nominis.cef.fr gives for Saint Ysile the date of 15 March). He is also celebrated in the diocese of Grenoble-Vienne on 1 July , together with Saint Martin and all the bishop saints of Vienne.Diocèse de Grenoble-Vienne: Histoire
