01 July - Saint Thierry or Thierry du Mont d'Hor was the son of Lord Marcard, a famous highwayman. He would have been born in the 5th century or at the very beginning of the 6th century and would have died around 533. On his wedding day, he discovered that he had a monastic vocation.

A marriage he did not contract of his own free will but under pressure from his father. So he decided, against his wife's advice, to go to the Archbishop of Rheims to undo his marriage. He first became a cleric and then retired to a monastery he founded on the hill of Mont d'Hor, which became Saint-Thierry near Rheims. Thierry was the first abbot and had the joy of seeing his father who had converted to join him in monastic life.

His sanctity was soon known and many sick people flocked to the monastery. It is even said that Thierry cured the sick eye of Thierry I, son of Clovis I. This is why the kings of France had the custom after their coronation to go to the abbey to eat there. This rite continued long after the death of the saint in 533. He was buried by King Thierry I and the bishops Hespérius of Metz, Nizier of Trier and Loup de Soissons.