Eléonore was the daughter of unknown parents. The date and place of her birth have not been found.
Her husband was Antoine II de Lalaing, who she married in 1560. The place has not been found. Their only known child was Guillaume (1563-1590).
Note 1
Joseph de Montmorency , seigneur de Nivelle (1526-1530), seigneur de Liedekerke , verstorben im Jahre 1530 - Bologna, Italie Verheiratet am 26. August 1523 (Sonntag) mit Anne d'Egmont , comtesse de Buren , geboren im Jahre 1502 , verstorben im Jahre 1574