Ghisburtus van Roesmont was a Dutch nobleman of some importance. His mother was jonkvrouw Adriana Theodorici Rover, the daughter of Dirk Edmondszn Roover. The Roover family appears to descend from one of the Radbot rulers of Holland who was given the name Roover, or Rover due to conquest of the Netherlands. Arnoldus Rosemont also descends to Radbot,  who was employed by the Franks to fight the Normans, the Vikings, who were called Rovers. The elder Radbot was allied with the Franks to fight the Viking, many who carried a banner with the image of a wolf. Was their  marriage with a Merovingian princess, and thus a marriage union to carry on this line?

The Rosemonts are mentioned in the genealogical book, Taxandria, an extinct province that was replaced by ‘s-Hertogenbosch that had no rulers, or Papal interference, which is rare. The Swan Brethren appear to have owned Saint John’s Church, and ran its…