[2] Monas died on 25 March (the exact year was not recorded) and his corpse was buried near the church of Saint Vitalis of Milan (Basilica Fausta), in the area where now stand the Basilica of Sant'Ambrogio.

Under the episcopate of Arnulf II (998-1018), on 12 October (the year was not recorded), his relics were discovered and translated into the church of Saint Vitale near the Basilica Naboriana (now demolished).

On 6 February 1576 his relics were translated by Saint Charles Borromeo to the Cathedral of Milan where they are today.

[3] A late tradition, with no historical basis, associates Monas with the Milan's noble family of the Borri.

Monas is also venerated in a chapel, renovated in the 17th century by the Borri family, in the Santuario della Beata Vergine dei Miracoli of Corbetta.