Where does “Bois-le-Duc” come from?

Bois-le-Duc (Portuguese) comes from French Bois-le-Duc, from Dutch 's-Hertogenbosch, from Dutch des hertogen bosch — the duke's forest.

Ancestry of “Bois-le-Duc”, step by step

Step	Language	Word	Meaning
1	French	Bois-le-Duc	—
2	Dutch	's-Hertogenbosch	—
3	Dutch	des hertogen bosch	the duke's forest

Bois-le-Duc — Etymology, Origin & Word History | Etymology Explorer