La Roque-d ` Anth Ã ron is a commune of 4,722 people ( 2004 ) . La Roque-d ` Anth Ã ron ( La RÃ ca d'Anteron in Occitan ) is a commune in the Bouches-du-Rh Ã ne department in southern France . Silvacane Abbey , a former Cistercian monastery , is located near La Roque-d ` Anth Ã ron .