Question: When did Princess Désirée, Baroness Silfverschiöld's father die?
Sentence (from "Prince Gustaf Adolf, Duke of Västerbotten"): Prince Gustaf Adolf Oscar Fredrik Arthur Edmund, Duke of Västerbotten (22 April 1906 – 26 January 1947) was a Swedish prince, who for most of his life was second in the line of succession to the Swedish throne.
Relevant evidence: Yes