Archduke Franz Ferdinand and Countess Sophie
Queen Beatrix and Prince Claus
King Harald and Queen Sonja
King Carl Gustaf and Queen Silvia
Prince Bertil and Princess Lilian
C.Prince Willem-Alexander and C.Princess Maxima
Infanta Cristina and Iñaki
C.Prince Haakon and C.Princess Mette-Marit
C.Prince Frederik and C.Princess Mary
C.Prince Naruhito and C.Princess Masako: I know, unlike the couples above, who always show their affection in their eyes or little gestures, the Japanese royals do not show their feelings openly, but the support the prince has always and publicly shown to his wife speaks loudly, IMHO, of their love after she had put aside her fears of what her life could be as the wife of the Imperial heir (fears, that, sadly, became real) and finally accepted his marriage proposal.
Avalon said:
Prince of Wales and the Duchess of Cornwall – so many years to be together. And their loyalty and love towards each other never wavered.
I do agree they must love each other very much after so many years, the many things they have endured after the
threesome marriage was openly known worldwide and I do not recall seeing Prince Charles smiling and looking so happy before on pictures and videos, but they do not match my idea of "romantic".
Unlike Prince Bertil and Princess Lilian of Sweeden who remained together for so many years before they were allowed to marry or like Archduke Franz Ferdinand and Countess Sophie who had to endure a morganatic marriage, Camilla and Prince Charles married other people instead of remaining together.
And that decision would later be the cause of so much pain to their spouses (late Princess Diana in particular) but specially to their children (I know, they all looked very happy at C-C's wedding but the four of them must have suffered a lot when the truth about their parents' marriages was uncover) so they do not match my idea of the most romantic royal male/female or couple.