STOCKHOLM, SWEDEN - DECEMBER 19: Princess Desiree of Sweden and Baron Nicolas Silfverschioeld have announced their engagement on December 19, 1963 in Stockholm, Sweden. (Photo by Gamma-Keystone via Getty Images)
STOCKHOLM, SWEDEN - DECEMBER 19: Princess Desiree of Sweden and Baron Nicolas Silfverschioeld have announced their engagement on December 19, 1963 in Stockholm, Sweden. (Photo by Gamma-Keystone via Getty Images)