He married twice, first to Diane de Cossé and, second, to Marie Christine von Egmond, who died 1622.
She had, from her second marriage, a son, Alexandre de Bournonville Duc de Bournonville, Comte de Henin-Lietard (14 September 1585, Brussels, died 21 March 1656), and, probably with Mansfeld, a second son, Antoine III de Lalaing (born between 1588 and 1590 and died 26 September 1613), Count of Hoogstraeten, who married Maria Margaretha de Berlaymont, daughter of Claude Berlaymont, also known as Haultpenne.
Siblings
From his father's first marriage on 1.4.1542 to Margaretha van Brederode (*ca 1520, died 31 May 1554);
Friedrich, *1542, died 1559
Polyxene, +after 17 September 1591; m. Palamedes von Nassau-Chalon (+1600)
Step Siblings:
From his father's second marriage 22.2.1562 Marie de Montmorency (+5.2.1570)