Happy Birthday to Princess Irene of the Netherlands, who turns 78 today. Born the second of the four daughters of Queen Juliana and Prince Bernhard of the Netherlands, she spent part of her childhood in Canada, where the family stayed for the duration of the Nazi Occupation of Holland. One of the most glamorous Princesses in the 1960s, Princess Irene studied in Spain, where she met Carlos Hugo, Duke of Parma, one of the pretenders to the Throne of Spain. When they announced their engagement, it caused a lot of controversy among the Dutch people and her family, over the Duke’s catholic religion and role in Spain, for which she had to renounce her place in the line of Succession. Eventually, the couple married in 1964, and had four children, but divorced in 1981. Since, Princess Irene and her children moved back to the Netherlands, where she promotes sustainability.