Former Deutsche Bank chief executive and later supervisory board chairman Rolf Breuer has died at the age of 86, the bank announced in Frankfurt on Thursday. The banking executive, who spent almost his entire career at Deutsche Bank and launched Germany’s largest bank on an international path, died following a long illness on Wednesday. While he was chief executive between May 1997 and May 2002, Breuer embarked on the acquisition of Bankers Trust, a major Wall Street investment bank. Deutsche Bank supervisory board chairman Alexander Wynaendts said Breuer’s significance could not be overestima…