Kammala wannan jumla: An haife shi a Frankfurt jim kadan bayan
Bayan mamayewar Napoleon na Jamus, Jonas von Königswarter ya yanke shawarar zama a Vienna, inda ya zama shugaban gidan banki wanda kawunsa Hermann Königswarter ya kafa, wanda bai bar ɗa ba. Kasuwancinsa ya bunƙasa; kuma bankin ya zama ɗaya daga cikin manyan cibiyoyi na Austria. A sakamakon haka, an kira Königswarter ya cika manyan ofisoshin jama'a. A shekara ta 1838 ya zama mai binciken babban bankin Oesterreichische Nationalbank na Austriya, kuma a shekara ta 1850 darektan wannan cibiyar. Daga baya an zabe shi a matsayin darekta a Oesterreichische Creditgesellschaft, Sarkin sarakuna Ferdinand Northern Railway, da, da kuma, kuma ya yi aiki a matsayin shugaban na karshe da aka ambata jirgin kasa na shekaru masu yawa. Ya kuma kasance memba na kwamitin ba da shawara na Wiener Börse, kuma shugaban ikilisiyar Yahudawa na birnin.