Following the shock discovery, the man stormed into the local bishop's office in Chioggia, near Venice, and demanded an explanation. Later police were called to calm him down.
Details of the incident in Chioggia near Venice emerged on Sunday in Italian newspapers and the local bishop Angelo Daniel has now confirmed that the adulterous priest has been sent to another parish for "reeducation".
The 53-year-old priest was described as a specialist on the Bible and had been a good friend of the couple.
The husband, 39, and his wife, 37, have two children.
Bishop Daniel added: "I have always respected the priest in question and I will continue to respect him. You cannot discount all the good a person has done in their life just because of one mistake."
