Danske Bank bought the bank from National Australia Bank in December 2004 .
Northern Bank continued to operate under Danske Bank 's own name Danske Bank it took on the name Danske Bank 's its parent Danske Bank 's as its trading name in November 2012 .
Danske Bank bought the bank from National Australia Bank in December 2004 , and Northern Bank continued to operate under its own name until it took on the name of its parent company as its trading name in November 2012 .