ROME, ITALY - JUNE 21: Princess Viktoria de Bourbon de Parme, Princess Christina of The Netherlands and Prince Jaime de Bourbon de Parme attend a concert for President Sergio Mattarella performed by Dutch violinist Janine Jansen at the Palazzo Colonna during the second day of a royal state visit to Italy on June 21, 2017 in Rome, Italy. (Photo by Patrick van Katwijk/Getty Images)