Where does “'s-Hertogenbosch” come from?

's-Hertogenbosch (Polish) comes from Dutch 's-Hertogenbosch, from Dutch des hertogen bosch — the duke's forest.

Ancestry of “'s-Hertogenbosch”, step by step

Step	Language	Word	Meaning
1	Dutch	's-Hertogenbosch	—
2	Dutch	des hertogen bosch	the duke's forest