Saint Catherine and Saint Cornelius Church (Diegem)

The Saint Catherine and Saint Cornelius Church is a remarkable Late Gothic church located in the Belgian district of Diegem. Since the Middle Ages, it has been an important pilgrimage site, primarily dedicated to the veneration of Saint Cornelius, a 3rd-century pope and martyr. As the first patron saint of the parish, he was invoked to protect or heal the faithful from ailments such as gout, epilepsy, convulsions, and whooping cough.

From 1615 onward, Saint Catherine of Alexandria gradually replaced Saint Cornelius as the parish’s patron saint. This change may have been influenced by Catherine Oudart, a local noblewoman who died in 1629. Despite this transition, devotion to Saint Cornelius remained strong, and from 1751, he was once again mentioned alongside Saint Catherine as co-patron saint.

War and Reconstruction

During the Second World War, the tower was completely dismantled in 1943 by order of the German occupying forces, as it obstructed military aircraft taking off from Zaventem Airport. The dismantling was carried out stone by stone, allowing for later reconstruction.

The people of Diegem had to wait eight years before celebrating the official reconstruction of the spire on 28 October 1951. The rebuilding was carried out under the supervision of architect F. De Groodt.

Interior and Pilgrimage Traditions

For centuries, the church has attracted large numbers of pilgrims. Their offerings were collected in an imposing oak donation chest, roughly hewn and secured with three heavy padlocks, large enough to hold substantial contributions.

A curious feature can be found at the rear of the church: a small service window recalling an old custom whereby parishioners offered live animals—such as rabbits, chickens, or geese—as donations. After Mass, these animals were auctioned for the benefit of the church. According to local legend, one farmer succeeded in offering the same goose eight times, each time buying it back after the service.

The prosperity of the church administration is reflected in the richness of the interior. The walls are lined with wooden panelling, adorned with a fully carved wooden Stations of the Cross, remarkable in its own right. Also noteworthy are the medieval frescoes of the apostles, painted on the pillars of the central nave, as well as the choir windows, some of which date from the 18th century. Several stained-glass windows were destroyed during wartime bombardments and were replaced in the early 1960s with more contemporary designs.

Protected Heritage

The Late Gothic Saint Catherine and Saint Cornelius Church, with its medieval frescoes, has been listed as a protected monument since 1938. To this day, it remains a place of reflection, historical memory, and architectural heritage—and is well worth a careful visit.