[2] After her diplomatic career in Moscow and Bangkok, Löffler joined Thomas Klestil's office, who was by that time general secretary in the Austrian ministry of foreign affairs.

When Thomas Klestil died in office on 6 July 2004, both his wives attended the funeral service held in St. Stephen's Cathedral in Vienna.

The Roman Catholic Archbishop of Vienna, Cardinal Christoph Schönborn, welcomed Edith Klestil first.

[2] After her husband's death on 6 July 2004, Klestil-Löffler was appointed Austrian ambassador to the Czech Republic.

Klestil-Löffler made headlines during the 2014 Sochi winter games when she tried to take a family of Puppies from America's silver medalist Gus Kenworthy.