TravelHappy Birthday Maria Theresa!Frederike Müller is/sbc03/15/2017March 15, 2017Austria celebrates its former ruler, who was born on the 13th of May, 1717. To mark her 300th birthday we explore the imperial domains of Maria Theresa in and around Vienna.https://p.dw.com/p/2ZDUQImage: picture-alliance/picturedesk.com/W. Gredler-OxenbauerAdvertisementShe might not have been made the sole leader, but as first lady she had a lot of influence.