Originally, the site was a Benedictine abbey founded by the Merovingian King Childebert I in the sixth century. Today, only the portion including the church is still visible. The tower and nave, Romanesque, have to Moreover been rebuilt in the eleventh century, after the Vikings have torched the building two centuries earlier.
Become a parish in the seventeenth century, is today considered one of the oldest churches in the capital and regularly hosts classical music concerts. It is named after Germain, bishop of Paris in the sixth century, who was one of its directors.