Sidonius was an Irish

Ireland

Ireland is an island to the northwest of continental Europe. It is the third-largest island in Europe and the twentieth-largest island on Earth...

-born French

France

The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

 monk

Monk

A monk is a person who practices religious asceticism, living either alone or with any number of monks, while always maintaining some degree of physical separation from those not sharing the same purpose...

 and saint

Saint

A saint is a holy person. In various religions, saints are people who are believed to have exceptional holiness.In Christian usage, "saint" refers to any believer who is "in Christ", and in whom Christ dwells, whether in heaven or in earth...

. He was the spiritual teacher

Teacher

A teacher or schoolteacher is a person who provides education for pupils and students . The role of teacher is often formal and ongoing, carried out at a school or other place of formal education. In many countries, a person who wishes to become a teacher must first obtain specified professional...

 of Leutfridus

Leutfridus

Leutfridus was a French monk and saint of the eighth century.Leutfridus studied at Condat Abbey and at Chartres, and was for a time a teacher at Evreux. A Benedictine, he was also a spiritual student of Saint Sidonius of Saint-Saëns. He spent time as a hermit at Cailly and at Rouen; he founded...

.

Sidonus was born sometime in the seventh century, and was a monk at the abbey

Abbey

An abbey is a Catholic monastery or convent, under the authority of an Abbot or an Abbess, who serves as the spiritual father or mother of the community.The term can also refer to an establishment which has long ceased to function as an abbey,...

 in Jumieges

Jumièges

Jumièges is a commune in the Seine-Maritime department in the Haute-Normandie region in northern France.-Geography:A forestry and farming village situated in a meander of the river Seine, some west of Rouen, at the junction of the D65 and the D143 roads...

 in 664; he then spent several years travelling between monasteries

Monastery

Monastery denotes the building, or complex of buildings, that houses a room reserved for prayer as well as the domestic quarters and workplace of monastics, whether monks or nuns, and whether living in community or alone .Monasteries may vary greatly in size – a small dwelling accommodating only...

. For ten years he served in Rome

Rome

Rome is the capital of Italy and the country's largest and most populated city and comune, with over 2.7 million residents in . The city is located in the central-western portion of the Italian Peninsula, on the Tiber River within the Lazio region of Italy.Rome's history spans two and a half...

 as a companion to Ouen

Ouen

Audoin, Audoen or Ouen, and Dado to his contemporaries, , was a Frankish bishop, courtier, chronicler, and Catholic saint....

, eventually being sent to found a monastery near Rouen

Rouen

Rouen , in northern France on the River Seine, is the capital of the Haute-Normandie region and the historic capital city of Normandy. Once one of the largest and most prosperous cities of medieval Europe , it was the seat of the Exchequer of Normandy in the Middle Ages...

. This monastery, known as Saint-Saëns, survived until the ninth century. Sidonius founded several other monasteries in the area before retiring to live as a monk.

Sidonius died around 690

690

Year 690 was a common year starting on Saturday of the Julian calendar. The denomination 690 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.- Asia :* Beginning of Wu Zetian's Zhou Dynasty in China...

; his feast day is November 14.