History
This family was founded by Thierry, Lord of Chasteler (casteletum) in France in Lorraine around 1300. About the exact origins few is known, in the 18th century genealogist believed that Thierry was related to the house of Chatelet, this theory is disputed in the 19th century. Theory says Thierry was a son of Ferry, 2nd Duke of Lorraine. After his death he was Succeeded by his son Ferry, Lord of Chasteler. The next generation leaves Lorraine. The Heerlijkheid of Moulbaix was obtaint in the 15th century by marriage, and in this periode the lords own land both in Wallonia and in Lorraine. Jean François (1691–1764) became the First Marquess of Chasteler and Moulbaix in 1725. Empress Maria Theresia decided in 1769 that all descendants of François Joseph Gabriel were given the right to be titled Marquess of Chasteler and Moulbaix.Nobiliaire des Pays-Bas et du comté de Bourgogne: 1 /Gyselynck, 1865Genealogy
Jean-François du Chasteler (1691–1764), 1st Marquess of Chasteler and Moulbaix: ''Married to Marie-Claire-Josèphe du Sart (+ 1758)''. **François Gabriel Joseph du Chasteler de Courcelles : *** 1st wedding: ''Albertine, daughter of Johan, Graf von Thürnheim (1742–1765).'' **** Johann Gabriel Josef Albert du Chasteler de Courcelles, (1763–1825) ****Philippine Françoise Josephe Dorothée du Chasteler, (1764) ****Marie Josephe Julie Feliciane du Chasteler, (1765) ***2nd Wedding:''Catherine de Hasselaer'' ****Gérard-Arnoult-Frédéric-Gabriël du Chasteler, born 1770: Married Josephine Ubesch. *****Ida-Hélène-Caroline du Chasteler, born 1798:References
{{Reflist Belgian noble families