Final answer:
Fr. Andre Coindre died at the age of 25, on July 9th and 10th, in the year 1361, during the plague outbreak in Milan.
Step-by-step explanation:
Fr. Andre Coindre died at the age of 25, in the night between Friday and Saturday, on July 9th and 10th, in the year 1361. He passed away in Milan during the outbreak of the plague, which had previously spared the city.