Cyriakusstift, Religious complex in Brunswick, Germany

The Cyriakusstift is a church complex in Brunswick with a central church, stone buildings arranged around it, and spaces designed for monastic living. The layout reflects how a religious community once organized its daily life within these interconnected structures.

Count Ekbert I of the Brunonen family founded the collegiate foundation around 1060; his son Ekbert II built it between 1068 and 1090, and Ekbert II was buried in its crypt in 1090. The chapter adopted the Reformation in 1542, before the Duchy of Brunswick-Wolfenbüttel. In 1545 the city council had the entire complex demolished to strengthen Brunswick's fortifications, and the canons moved to St. Blasius.

The collegiate church was dedicated to the martyrs Cyriacus and Quirinus and to the Holy Cross. The canons' chapter numbered twelve, appointed by the patron, and its dean held police authority and secular jurisdiction over the foundation's members and its estates. The church's crypt served as the burial place of the Brunonen family.

Nothing of the complex survives: the site lies south of the medieval city wall, on the ground of the Alte Bahnhof built in the 19th century, now occupied by the Braunschweigische Landessparkasse. Look for the location near the former Wilhelmitor and Bruchtor rather than for masonry. The two 16th-century woodcuts of Brunswick showing the towers of St. Cyriakus are the visual record to consult.

The collegiate church was dedicated to Saints Cyriacus and Quirinus and to the Holy Cross, and its crypt served as the burial place of the Brunonen family; Count Ekbert II was interred there in 1090. His grave was later moved to the crypt of St. Blasius in Brunswick. A carved statue of Saint Cyriacus, covered with silver sheet, passed into the reliquary treasure of Brunswick Cathedral, part of the so-called Welf Treasure.