Old Saint Peter's Church, Strasbourg

The Church of Old Saint Peters is a by simultaneum Catholic and Lutheran church building in Strasbourg, Alsace is first mentioned in 1130.In the Middle Ages it was one of Diocese of Strasbourg's nine parish churches.

On 22 May 1398 the Chapter of the Abbey of Honau, which had been in Rhinau since 1290, moved to Old St Peter's because of flooding in Rhinau. The Chapter stayed there until 1529, conducting its services in the choir, while the parish occupied the nave. When the Catholic rite was restored in 1683, the Chapter returned to the Church and stayed there until 1790, when it was wound up.

On 20 February 1529, when Strasbourg openly joined the Reformation and suspended the practice of the mass, the Church became Lutheran.