He succeeded his father in 1272 or 1273, as the Count of Looz and Chiny.
Their children were: Widowed, he married secondly, in 1269, Isabelle de Conde (d. after 1280), daughter of Jacques, Seigneur of Conde and Bailleul, and his wife Agnes of Rœulx.
Settipani, Christian, La Préhistoire des Capétiens (Nouvelle histoire généalogique de l'auguste maison de France, vol.
Patrick van Kerrebrouck, 1993, 545 p. Thonissen, JJ., Arnold IV, Royal Academy of Belgium, National Biography, Vol.
1, Brussels, 1866 Arlette Laret-Kayser, Entre Bar et Luxembourg : Le Comté de Chiny des Origines à 1300, Bruxelles (éditions du Crédit Communal, Collection Histoire, série in-8°, n° 72), 1986