Agnès Galand decided at the age of seven to dedicate her life to Our Lady of Le Puy-en-Velay. As a sign of this vow, she took a chain from her father’s workshop and wore it around her waist. When Agnès decided to enter the newly founded Dominican convent of Langeac at the age of 21, she gave up wearing the chain, because the vows of her entry into the order replaced this sign of her previous dedication. Her profound piety and charity made a deep impression on her fellow sisters, and they chose Agnès as their prioress. She carried out this task with great gentleness and care. At the same time, she repeatedly helped women in childbirth, a skill for which she was widely known.

In 1631, Agnès had a vision of Our Lady asking her to pray for the abbot of the nearby monastery of Pébrac, whom she did not know personally. Two years later, Jean-Jacques Olier, the founder of the Sulpician Congregation, appeared to Agnès and they met. A few months after this meeting, Agnès died, but the Sisters of Langeac continue to pray for the members of the Sulpician Congregation to this day.

After Agnes's death, many believers turned to her intercession, especially in cases of difficult pregnancies, holding Agnes's necklace in their hands as they prayed. 1952. In 1911, expectant parents came to the Langeac monastery, who had been told by doctors that the upcoming birth would endanger the lives of both mother and child. The parents prayed for Agnes' intercession while holding her chain in their hands. The child's birth was uneventful. This event was recognized as a miracle and paved the way for Agnes Galand's beatification in 1994. in.