Embracing a life of piety, he felt called to the religious vocation and applied to join the Order of Friars Minor, where he was admitted as a lay brother after a brief period.

From 1445 to 1449, Didacus served as the guardian of the Franciscan community in the Canary Islands, specifically on the island of Fuerteventura. His leadership was notable particularly because he was a lay brother, which was an exception to the usual practice.

In 1450, Didacus traveled to Rome, participating in the Jubilee Year proclaimed by Pope Nicholas V and attending the canonization of St. Bernardine of Siena. He took on the role of infirmarian at the Santa Maria in Ara Coeli convent.

After his time in Rome, Didacus returned to Spain and lived at the friary of Santa María de Jesús in Alcalá, where he spent his remaining years in solitude, penance, and contemplation. He died on November 12, 1463, from an abscess.

Canonization and Feast Day

Saint Didacus was canonized by Pope Sixtus V on July 10, 1588.