Soon after his entrance into the Lombard province of the Dominican Order, he was sent (1262) to pursue his studies at Milan, where he formed a close friendship with Niccolò Boccasini, later pope under the name of Benedict XI (1303–04).
In this capacity he travelled to the Chapter General of Toulouse in May, 1304, where a successor to Bernard de Jusix was to be elected, but just before the first session renounced his office and vote, with the consent of the pope.
In 1309 Pope Clement IV enjoined on Aymeric who was on his way to the chapter of Zaragoza in Spain, to examine into the charges brought against the Templars.
Amymeric died at Bologna on 19 August 1327 Aymeric of Piacenza is the reputed author of a treatise against the heretics of his day, and of works on moral, dogmatic, and scholastic questions, none of which are known to be extant.
Bernard de Montfaucon (Diarium Italicum, xxvii) speaks of a curious present given by Aymeric to the convent of Bologna.