[2] After finishing theological studies, Émeric chose to live apart from his noble family as a simple priest in a contemplative and ascetic manner.
Émeric regularly convoked the Synod of his diocesis (we better know the one of 1307), promoting the sanctity of the clergy and the laities with rigorous rules especially in items such as fastings and religious feasts.
In particular it was a common point in all the ancient biographies that Émeric was a canon in the collegiate church of Sant'Orso; however, the Aostan historian Aimé-Pierre Frutaz noticed that while no cleric called Emericus was mentioned in documents relating to the collegiate church, on the contrary a prebendary called Emericus figured in the cathedral's records.
The most ancient sources are very short summaries about the date of his death and his pious donations contained in Aostan necrologies until a picture appears in Aosta in 1498 showing Émeric as Blessed, invoked to cure many diseases.
A more historically correct biography was made in 1875 by bishop Joseph-Auguste Duc (and another in 1908 in his monumental of the Church in the Aosta Valley) who was the same who collected almost all the ancient documents relating to Émeric's episcopacy.