Her directors included Olof Molander, Alf Sjöberg, Ingmar Bergman, Mimi Pollak and Göran Gentele, and some of the actors in her plays were Jarl Kulle, Inga Tidblad and Mai Zetterling.

You build up your own little world, a concentrate, where everyone invests of h-self to hold the pieces together and thus be able to offer the audience something whole.The theatre was closed for renovation in 1956, and after leaving there Bernadotte was trained by the NK department store and took over their gift shop.

A few years later she took courses in Cultural Communication, French and Art at Stockholm University, became the Swedish representative of Sotheby's and in 1970 studied gourmet cooking at Le Cordon Bleu in Paris.

She became particularly close and lifelong friends with Balmain and with his successor Erik Mortensen, and they as well as several other French houses of haute couture often for publicity dressed the easily fitted Bernadotte in their latest work.

One of her first involvements was publicity and funding work for the Swedish Permobil electric wheelchair designed by Per Uddén, who has credited her efforts in making it a field leader and "creating liberty for hundreds of thousands of people with mobility problems all over the world".

Bernadotte began fundraising efforts, procured valuable artwork from artist friends and was assisted by other prominent members of Stadsbrudskåren (Urban Women's Corps, which she has belonged to since it was founded in 1965) for an auction at Bukowskis in 1990 which brought in SEK 1.2 million.

In 1998, she was awarded an Honorary Doctorate of Medicine by that institute, and Marianne Bernadotte Center, founded in 2013, is slated to move into new facilities there from its current location at St. Eriks Hospital in Stockholm.

The 20th anniversary award ceremony in 2012 was attended by their grandnephew Prince Carl Philip, Duke of Värmland, as well as Queen Noor of Jordan and former empress Farah of Iran.

Her brother Rune Lindberg suffered from dyslexia before it was an understood problem, and that plus her discovery much later, that members of the Swedish royal family also struggled with the affliction, led to her keen interest in the subject.

They had three children: She married, secondly, on 30 July 1961 in Stockholm, the former Swedish prince Sigvard Bernadotte (second son of King Gustaf VI Adolf and his first wife Princess Margaret of Connaught), whom she had met much earlier when he was designing scenography at Dramaten, and again in 1957 when seeing mutual friends in Båstad.