Aimo of Toul was a late 4th-century Catholic bishop who served as the second recorded leader of the diocese of Toul. Following the tenure of Saint Mansuy, he held his episcopal office from approximately 375 until his death, which is estimated to have occurred around 423. Although historical details regarding his life remain sparse, he is remembered for his penitential lifestyle and his connection to the forest of the Saintois, where he reportedly established a hermitage for his priests.
Life and legends

Tradition suggests that Aimo lived a life of penance, frequently retreating to a cave in the forest. Local legends claim he once escaped the forces of Attila the Hun by hiding behind a rock that miraculously opened to shield him. This site, located near the village of Goviller, is known today as the Bois d'Anon. He is said to have dedicated a small hermitage-chapel to the Virgin Mary near Saulxerotte.
Veneration and relics

The Catholic Church recognizes him as a saint, with his feast day observed on October 25. His image is depicted within the apse of the cathedral in Toul. Historical accounts from the 19th century noted that fragments of his clothing and hair-shirt were kept in a wooden casket at the Collegiate Church of St Gengoult, alongside various other bones.
