est ▁made ▁the ▁Crown ▁Prince ▁the ▁de ▁fact o ▁r uler ▁of ▁Sweden . ▁Under ▁Bern ad otte ' s ▁rule , ▁Sweden ' s ▁relationship ▁with ▁Napole onic ▁France ▁d eter ior ated . ▁When ▁France ▁occupied ▁Swedish ▁P omer ania ▁and ▁the ▁island ▁of ▁R ü gen ▁in ▁ 1 8 1 2 , ▁Sweden ▁sought ▁peace ▁with ▁Great ▁Britain . ▁ ▁Tre aties ▁of ▁Ö re bro ▁After ▁long ▁negoti ations , ▁the ▁Tre aty ▁of ▁O re bro ▁was ▁signed ▁on ▁ 1 8 ▁July ▁ 1 8 1 2 . ▁On ▁the ▁same ▁day ▁and ▁at ▁the ▁same ▁place , ▁Britain ▁and ▁Russia ▁signed ▁a ▁peace ▁treat y ▁bringing ▁the ▁Ang lo – Russ ian ▁War ▁of ▁ 1 8 0 7 – 1 8 1 2 ▁to ▁an ▁end . ▁ ▁See ▁also ▁ ▁English ▁Wars ▁( Sc and in avia ) ▁ ▁Gun bo at ▁War ▁ ▁D ano - S wed ish ▁War ▁of ▁ 1 8 0 8 - 1 8 0 9 ▁ ▁P omer an ian ▁War ▁ ▁Finn ish ▁War ▁ ▁Notes ▁ ▁References ▁http :// blog . sv d . se / histor ia / 2 0 1 2 / 1 1 / 0 7 / han os - b ritt iska - histor ia / ▁http :// www . ro yal n avy . mod . uk / News - and - Events / Lat est - News / 2 0 1 3 / J uly / 0 2