It is composed of six bayed naves flanked by aisles, a three-sided transept, and a choir with a polygonal ambulatory with a sacristy in its axis.

During the 1740s, Duchess Maria Theresa of Austria and the Council of Brabant instituted administrative reforms at the request of the mayor and the magistrate.

On 28 June 1780, Prince-Bishop François-Charles de Velbrück officially yielded the lordship of Jumet to Brabant.

[8] During the period of French rule, Jumet belonged to the department of Jemappes, which became part of the province of Hainaut after the fall of Napoleon.

The church's predecessors, whose patron saint remains unknown, belonged to a parish of the old deanery of Fleurus, part of the Diocese of Liège.

In 1967, the church underwent a major restoration led by Simon Brigode [fr], architect and professor at the University of Leuven.

The excavations were done in a limited area which turned out to be of significance[10] although the restoration work had already destroyed some of the ancient foundations.

During the excavations, workers found no foundation, no under-pavement, no lime mortar runoff, and no altar base.

A thin brick gutter to hold gas lighting pipes was installed during the second half of the 19th century, cutting across the B trench.

[13] An early 20th-century gutter, constructed roughly along the lengthwise axis of the current church, cut through the old foundations.

The first building was Pre-Romanesque and constituted a rectangular chamber composed of a plain nave 4.7 metres (5.1 yd) wide, whose length the excavations did not manage to determine.

The bell tower, standing against the church frontage, underwent significant restoration in 1670 and had a clock installed in 1681.

It was capped by an octagonal pointed spire, topped by a big finial cross and a weathercock reaching 38 metres (42 yd) in height.

[24] Finally, after a lawsuit[clarification needed], an agreement was reached for repairs to be made to the church, including the choir, tower and nave roof.

[25] Construction lagged and, even though old materials were re-used in the base and the pavements,[22] the cost was five times higher than the original estimate: We have been greatly wronged for the erection of this church[...]because the church building, instead of costing us twenty thousand florins, is now costing us at least a hundred thousand [...] The architect has deceived us by increasing the length of the aforementioned church by twenty-nine feet, and many other thingsThe initial plan was to re-integrate the old tower.

[29] On the east side, a first bell from 1590 is adorned with the image of the Virgin and has the inscription: Micael Willelmus coadiutor Lobiensis me fecit[30] – 1590 – Maître Jean Grongnart, founder[29][31] On the west side, the second bell was probably poorly cast because it was remelted in 1772, as shown by the inscription: + In the year 1772 I was remelted at the expense of the community of Jumet by Simon Chevresson and Deforest.

[29] It's likely that the French Revolution caused damage because money was allocated by the local administration for the repair of window panes and the roof in 1797.

[33] In the brickwork of the master altar, removed during the 1968 restorations, a wooden reliquary casket with a glass lid was discovered.

It's composed of six bayed naves flanked on either side by aisles, a three-sided transept and a choir with a polygonal ambulatory with a sacristy in its axis.

[38] In the church is a baptismal font from the 11th or 12th century consisting of a stone bowl slightly flared but circular, flanked by four engaged columns on a base.

The style is Romanesque and the font archaic: straight nose and barely cleared, skin-deep eyes, mouth expressionless.

[39] The furniture also includes an altar devoted to Our Lady of Tongre and a communion bench, both dating to the 17th century.