[1] Bertil was granted a very old dukedom, one that was bestowed in the Middle Ages on various Danish and Swedish royal relatives.

After his eldest brother, Prince Gustaf Adolf, died in 1947, leaving an infant son, Prince Carl Gustaf, in the line of succession, and because his elder brother Sigvard had already given up his place in the succession (owing to a constitutionally unacceptable marriage), it seemed likely that Bertil could one day become regent.

[2] Since his life with Craig was not official, Prince Bertil's single status meant he was suggested as a match for, among others, Princess Margaret of the United Kingdom.

[citation needed] Bertil was fond of cars, owning a rare Aston Martin DB2[4] and a Chevrolet Corvette.

Prince Bertil was a keen supporter and practitioner of various sports, notably tennis and boules.