öder mal m ▁and ▁Stad sh ol men ▁was ▁at ▁the ▁time ▁un ited ▁by ▁an ▁is th mus , ▁and ▁Saint ▁O la f ▁of ▁Norway ▁( 9 9 5 - 1 0 3 0 ) ▁produced ▁the ▁stra it , ▁in ▁the ▁s aga ▁called ▁Kon ung ss und ▁(" K ing ' s ▁stra it "), ▁by ▁sum mon ing ▁assistance ▁from ▁superior ▁forces . ▁ ▁A ▁slightly ▁different ▁version , ▁und ou bt edly ▁the ▁most ▁famous , ▁is ▁the ▁account ▁of ▁the ▁I cel and ic ▁historian ▁S nor ri ▁St url us on ▁( 1 1 7 8 – 1 2 4 1 ). ▁ ▁He ▁ret ells , ▁while ▁King ▁O lav ▁of ▁Norway ▁ra ided ▁the ▁Lake ▁M ä lar en ▁area , ▁the ▁Swedish ▁king ▁O lo f ▁Sk öt kon ung ▁( 9 6 0 s - 1 0 2 1 / 1 0 2 2 ) ▁hoped ▁to ▁trap ▁him ▁by ▁pulling ▁an ▁iron ▁chain ▁over ▁Sto cks und ▁(" Log ▁Stra it ", ▁e . g . ▁modern ▁Nor r ström ▁passing ▁north ▁of ▁the ▁old ▁town ), ▁a ▁stra it ▁in ▁addition ▁guard ed ▁by ▁a ▁cast ell um ▁and ▁an ▁army ▁on ▁either ▁sides . ▁ ▁The ▁Norwegian ▁king ▁then ▁d ug ▁himself ▁through ▁the ▁southern ▁is th mus ▁and , ▁helped ▁by ▁v ivid ▁streams ▁produced ▁by ▁spring ▁flo od ▁and ▁fav ou rable ▁wind s , ▁managed ▁to ▁have ▁his ▁ships ▁break ▁through ▁the ▁for esh ore