Question: When is Tancred Ibsen Jr.'s mother's birthday?
Sentence (from "Tancred Ibsen Jr."): He held various positions between 1962 and 1968, before serving as the Norwegian ambassador to Hungary from 1968 to 1973, to Egypt from 1973 to 1979, to the People's Republic of China from 1979 to 1982, to India from 1982 to 1986 and to Greece from 1986 to 1989.
Relevant evidence: No