Profession: Duke of Brabant, Duque de Brabant, DUKE OF BRABANT, Duc, de Basse-Lotharingie, de Basse-Lorraine, de Brabant, de Louvain, Croisé, duc de Brabant, marquis d'Anvers, Duque de Brabant (1183), Duque de Neder-Lotharingen (1190-1235), Duc de Brabant, Sieur, de Perwez, de Ruysbroex, Heer van Perwez en Ruysbroeck, Knight ridder, "Seneschal of Eye", Castellan of Eye (Suffolk), Lord of Little Easton, heer van Perwez en Ruysbroek, Heer van Perwijs en Ruisbroek (Vlaams-Brabant), Seigneur de Perwez, Seigneur de Ruysbroex.
When copying data from this family tree, please include a reference to the origin: Frans Chodzynski, "Family tree Chodzynski", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-chodzynski/I12339.php : accessed March 10, 2026), "Willem Godfriedsz van Leuven, Burggraaf van Perwez-Ruysbroeck (< 1190-1233)".
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