She was awarded the title of an Austrian Kammersängerin in 1934, a Prussian Kammersängerin in 1935. She gave her farewell in 1953 in Wiesbaden in Der Rosenkavalier. She was appointed professor at the Salzburg Mozarteum in 1964. The soprano recorded for Deutsche Grammophon in 1933, 1936, and 1943, with excerpts from Arabella, Le nozze di Figaro, Tosca, Turandot, Der Rosenkavalier, Il trovatore, and Capriccio, as well as two Lieder of Strauss. She was included in Volume III of EMI's The Record of Singing,[citation needed] in an excerpt from Arabella (1933).
Ursuleac's voice was not of great beauty, at least as recorded, but she was reckoned a great musician and actress. In the words of one colleague, the soprano Hildegard Ranczak, "Although she had a lovely, facile top, I was constantly amazed at the two hours' vocalizing she went through before each performance. Hers was, in my opinion, a marvelously constructed, not really natural voice which she used with uncanny intelligence".[This quote needs a citation]
In the 1930s Ursuleac and her husband were involved in helping Jews escape from Germany. After befriending British opera fans, the novelist Ida Cook and her sister Louise Cook, they instigated their rescue operation which started after Ursuleac asked the Cooks to assist a Jewish friend. Krauss gave cover to their smuggling operation and Munich Opera House shows were arranged around the times and cities that the Cooks needed to make contact with escapees.[1] At least 29 Jewish families were saved by this operation.
Ursuleac died at the age of ninety-one in the village of Ehrwald in Tyrol where she had resided since before the death in 1954 of her husband, Clemens Krauss.
Ursuleac is interviewed on the 1984 documentary, Richard Strauss Remembered, narrated by Sir John Gielgud.[2]