▁after ▁the ▁Swedish ▁victory ▁in ▁the ▁Battle ▁of ▁Rain , ▁the ▁Imperial ist ▁and ▁Le agu ist ▁occup iers ▁left ▁the ▁prince - arch bishop ric ▁again ▁and ▁with ▁them ▁the ▁foreign ▁Catholic ▁cler gy . ▁ ▁Church ▁building ▁ ▁The ▁Holy ▁Cross ▁Church ▁was ▁started ▁in ▁ 1 3 3 4 ▁and ▁its ▁ere ction ▁and ▁emb ell ishment ▁last ed ▁quite ▁some ▁time ▁as ▁shown ▁by ▁the ▁indul gen ces ▁granted ▁to ▁further ▁its ▁construction ▁and ▁decor ation . ▁The ▁tower , ▁like ▁the ▁church ▁proper , ▁based ▁on ▁err atic ▁b ould ers , ▁stands ▁west ▁of ▁the ▁church , ▁but ▁separately , ▁and ▁its ▁western ▁fa ç ade ▁forms ▁a ▁building ▁sight line ▁with ▁the ▁sou ther ly ▁adjacent ▁but ▁struct ur ally ▁un connected ▁convent ▁building ▁called ▁the ▁Al tes ▁Kloster . ▁ ▁Today ' s ▁church ▁building , ▁covering ▁, ▁is ▁divided ▁from ▁west ▁to ▁east ▁into ▁eight ▁b ays . ▁The ▁six ▁older , ▁w ester ly ▁b ays ▁are ▁built ▁from ▁brick ▁in ▁Kloster format ▁( height : ▁, ▁length : ▁, ▁and ▁width : ▁) ▁which ▁is ▁why ▁the ▁western ▁part ▁of ▁the ▁church ▁is ▁dated ▁to ▁the ▁ 1 3 3 0 s . ▁Also ▁the ▁structure ▁of ▁the ▁individual ▁br icks ▁and ▁the ▁altern ating ▁but ▁irregular ▁bond ing ▁of ▁headers ▁and ▁stretch ers ▁there ▁speak s ▁for ▁this ▁d ating . ▁Since ▁the ▁ 1 5 th ▁century ▁brick lay ing ▁usually ▁followed ▁regular ▁bond ings . ▁▁ ▁After ▁the ▁fires