The photo page from the June 23 1930 edition of the Toronto Daily Star is turning out to be a useful source of material! Here’s another photo from that page, of a princess rumoured to be betrothed to a prince:

As it turned out, Princess Maria and the Prince of Asturias did not get married after all. From the princess’s point of view, this might have worked out for the best.
Alfonso, Prince of Asturias (1907-1938) has been mentioned in this blog before. He renounced his rights to the Spanish throne in 1933 when he decided to marry a commoner, Edelmira Sampedro y Robato. At this time, he was given the courtesy title of Count of Cavadonga. He eventually divorced, remarried and divorced again, and moved to the United States. In 1938, shortly after stating that he would be happy to become the King of Spain if someone asked him to (no one did), he died in a car accident from internal bleeding, as he was a hemophiliac. The driver of the car, Mildred Gaydon, was charged with manslaughter but eventually freed.
By the time Princess Maria Francesca of Savoy (1914-2001) finally got married, Alfonso had already passed away. Her groom was Prince Luigi of Bourbon-Parma; they married in 1939 and had four children. Except for being interned by the Nazis during the Second World War, nothing particularly memorable happened to her. (Her husband doesn’t even have a Wikipedia page of his own!) She stuck around until the dawn of the 21st century, outliving her husband by over 34 years and her former alleged betrothed prince by nearly 63 years.