St Gertrude's abbey at Nivelles, founded by the Pippinid family in the 7th century, is an imperial abbey under the emperor's direct authority and lady of the town that grew around it, in the middle of the duchy of Brabant.
In practice the dukes of Brabant, as its advocates, are steadily drawing the town and the abbey's lands into their duchy.
Who holds it
- Name
- Berthe of Nivelles
- Title
- Abbess of Nivelles
- Since
- attested 1199
- Confidence
- medium
An abbess Berthe is named in 1199 and an abbess Ada in 1176; Berthe is therefore the likely abbess on 1 January 1200, but her dates are not pinned.
What it holds
- Nivelles: the abbey of St Gertrude and the town around it
- The abbey's estates in Brabant and beyond
How it was acquired
Founded in the 7th century by Itta and Gertrude of the Pippinid house; imperial abbey.
How things stand that morning
An imperial abbey in name, a Brabant town in practice; the abbess keeps her rights by appeal to the emperor.
Wealth
Pilgrims to St Gertrude; the Nivelles market; the abbey's estates.
Threats
- Absorption by Brabant
- The townsmen's ambitions
Advocates and rivals
The dukes of Brabant (Henry I), advocates of the abbey and the power that surrounds it; the townsmen of Nivelles.
Where the sources disagree
Evidence: The abbey's imperial status and the abbesses of 1176 and 1199 are attested; the Brabant advocacy is from general histories and was not confirmed in the sources consulted.
On the map: Drawn as the modern municipality of Nivelles.
Primary sources for Brabant
Chronicles, registers, sagas and inscriptions written in or near 1200 that cover this entry. Each has its own page with editions, translations and where to read it.
- Annals of Reiner of Saint James, Liège, Reiner of Liège (1197 to 1230, kept year by year). Contemporary annals kept inside Liège. Read online
- Royal Chronicle of Cologne (in stages from about 1175 to about 1250; the section on 1198 to 1220 written soon after the events). The fullest German narrative of the throne war from the Welf and Cologne side. Read online
- Chronicle of Alberic of Trois-Fontaines, Alberic of Trois-Fontaines (about 1227 to 1241, at the Cistercian abbey of Trois-Fontaines in Champagne). The widest net of any Latin chronicle for 1200, compiled from dozens of sources, many now lost. Read online
- Chronicle of Hainaut, Gislebert of Mons (about 1195 to 1196). Ends in 1195, so it has no 1200 entries, but it is the indispensable background for Flanders and Hainaut: the career of Count Baldwin V of Hainaut (VIII of Flanders), his union of the two counties, the settlement with Philip over Artois, the rights, castles, fiefs and vassals of Hainaut listed by a man who ran its chancery, and the youth of Baldwin IX, who held both counties in 1200. Read online
- Dialogue on Miracles, Caesarius of Heisterbach (about 1219 to 1223). Not a chronicle but a Cistercian's book of exempla, full of stories about Cologne, the Rhineland and the Low Countries around 1200: the throne war, usurers, heretics, crusade preachers, knights and townsmen, monks and recruits at Heisterbach, founded in 1189. Read online
Sources and studies
Last revised 4 November 2026. Published 4 November 2026. Suggest a correction on the OMNIA Discord.