▁February ▁ 1 0 ▁and ▁ 1 1 ▁– ▁A ▁Swedish ▁sie ge ▁of ▁the ▁city ▁during ▁the ▁Second ▁Northern ▁War ▁cul min ates ▁in ▁the ▁Ass ault ▁on ▁C open hagen ▁ ▁results ▁in ▁Dan ish ▁victory . ▁ ▁March ▁ 2 4 ▁– ▁The ▁citizens ▁of ▁C open hagen ▁are ▁granted ▁privileges ▁of ▁freedom ▁as ▁a ▁reward ▁for ▁their ▁contribution ▁to ▁the ▁defence ▁of ▁the ▁country . ▁ ▁May ▁ 2 1 ▁– ▁Sign ing ▁of ▁the ▁Con cert ▁of ▁The ▁H ague , ▁an ▁outline ▁of ▁the ▁common ▁st ance ▁of ▁England , ▁France ▁and ▁the ▁Dutch ▁Republic ▁regarding ▁the ▁Second ▁Northern ▁War . ▁The ▁powers ▁agree ▁that ▁the ▁Swedish ▁and ▁Den mark ▁shall ▁sett le ▁for ▁a ▁peace ▁treat y ▁based ▁on ▁the ▁Tre aty ▁of ▁Ros k ilde , ▁including ▁free ▁navigation ▁through ▁The ▁Sound ▁and ▁the ▁Balt ic ▁Sea ▁based ▁on ▁the ▁Tre aty ▁of ▁El bing . ▁The ▁subsequent ▁D ano - S wed ish ▁Peace ▁of ▁C open hagen ▁largely ▁followed ▁the ▁terms ▁dict ated ▁by ▁the ▁Con cert ▁of ▁the ▁H ague . ▁ ▁June ▁– ▁A ▁Dan ish ▁attempt ▁to ▁re capt ure ▁K ron borg ▁Castle ▁fails . ▁Ol uf ▁van ▁Ste en win ck el , ▁believed ▁to ▁be ▁the ▁son ▁of ▁the ▁architect ▁Hans ▁van ▁Ste en win ck el ▁the ▁Young er , ▁is ▁one ▁of ▁the ▁Dan ish ▁participants ▁in ▁the ▁attack ▁and ▁is ▁afterwards ▁executed ▁by ▁the ▁Swedish . ▁ ▁November ▁ 1 4 ▁– ▁The ▁Battle