Although twice offered the directorship of the Royal Danish Ballet , he twice declined the post .
He was director of the Swedish Opera Ballet from 1967 to 1973 and the National Ballet of Canada from 1983 until his death in 1986 .
Although twice offered the directorship of the Royal Danish Ballet , director twice declined the post .
He was director of the Swedish Opera Ballet from 1967 to 1973 and the National Ballet of Canada from 1983 until his death in 1986 .