What is Maria Radner?
{{Infobox person | name = Maria Radner | birth_date = {{birth date |1981|05|07}} | birth_place = [[Düsseldorf]], [[Germany]] | death_date = {{death date and age|2015|03|24|1981|05|07}} | death_place = [[Prads-Haute-Bléone]], [[Alpes-de-Haute-Provence]], [[France]] | death_cause = Plane crash<br />[[Germanwings Flight 9525]] | body_discovered = | resting_place = | resting_place_coordinates = <!-- {{coord|LAT|LONG|type:landmark|display=inline}} --> | nationality = German | website = http://www.ia-ac.com/MariaRadner }} '''Maria Friderike Radner''' (7 May 1981&nbsp;– 24 March 2015) was a [[Germans|German]] [[contralto]] and internationally renowned [[opera]] singer. After studying at the [[Robert Schumann Hochschule]] in [[Düsseldorf]], she appeared internationally in opera and concert. In January 2013, she played the Schwertleite in ''[[Die Walküre]]'' at the [[Teatro Comunale Florence]], [[Italy]] under [[Zubin Mehta]], and in March the Erda at the [[Grand Théâtre de Genève]], conducted by [[Ingo Metzmacher]]. Her debut at the [[Metropolitan Opera]] in 2012 in ''[[Götterdämmerung]]'' was part of the documentation of the production in the film ''[[Wagner's Dream]]''. Radner died on 24 March 2015 along with her husband Sascha Schenk and their infant son Felix,<ref>{{cite web|url=https://www.derwesten.de/kultur/musikwelt-trauert-um-altistin-maria-radner-33-sie-starb-mit-mann-und-sohn-2-beim-absturz-aimp-id10501258.html|title=Musikwelt trauert um Altistin Maria Radner (33) – sie starb mit Mann und Sohn (2) beim Absturz|date=26 March 2015|work=Dez.de|access-date=31 August 2017|archive-date=3 April 2015|archive-url=https://web.archive.org/web/20150403212920/http://www.derwesten.de/kultur/musikwelt-trauert-um-altistin-maria-radner-33-sie-starb-mit-mann-und-sohn-2-beim-absturz-aimp-id10501258.html|url-status=dead}}</ref> and colleague [[Oleg Bryzhak|Oleg Bryjak]], in the [[Germanwings Flight 9525]] crash, which occurred near [[Prads-Haute-Bléone]], [[Alpes-de-Haute-Provenc