When were royal girlfriends/boyfriends discovered?

[kwanfan]

I've seen the magazine cover that broke the news of Fred and Mary's relationship. But, when were other royal partners discovered by the press?

[crisiñaki]

The relationship between Cristina and Iñaki was disclosed by her aunt Infanta Pilar, a journalist set a trap assuring her that everybody knew they were dating, she confirmed his information and broke the news about 3 months before the engagement, so Iñaki got very chased and has to move with his friends Barrufet (best man at his wedding) and O'Callaghan because his house was sited by the papparazzi!!!

[Ms Griffin]

And in Norway, AFAIK, paparazzi followed Haakon around and saw him meeting up with a single mother. I remember seeing a picture of them in Kristiansand where he carried a children's car seat and she had Marius. The press wondered who she was (a friend?, a friend's friend?, etc.), where he knew her from, etc. A little while later he gave an interview that he is seeing someone and asked the press to back off. What they of course didn't. Wasn't that interview at Skaugum taking place in May 1999 already? Or in 2000? I remember hearing some experts saying Haakon was naive giving that interview so early on. But in their case it worked out in the end. So, good for them. :p

[moosey60]

I think Tessy Antony, girlfriend of Prince Louis of Luxembourg, was discovered when it was announced last year that they would be parents.

[Gita]

I know Crown Princess Victoria of Sweden and Daniel Westling were discovered after a couple of months dating. I think Princess Madeleine and Jonasd were found out after only a few dates.

[carlota]

felipe and letizia's relationship was found out by announcement as well. however, some days before, some journalists were commenting of felipe having a good relationship with a journalist.

[Josefine]

did denmark know about henrik, richard and constatine before the engagments

howabout norway, harld "dated" sonja for 10 years when was the relationchip piblic

how about the king of swedens sisters

[Lumutqueen]

William and Kate were found out after dating for 2 years, they were spotted skiing possible at Klosters.

I don't think the press new about Henrik before the engagement.
Princess Margaretha I don't think the press new about her realtionship until they were engaged and when she lost her Royal Highness.
I believe the press new about the Countess Of Frederiksborg before she married Prince Joachim.
Also the press knew about Princess Marie before she got engaged. They knew for possible a few years.

[Maura724]

The press wasn't supposed to know about Henrik until the engagement was announced, but Margrethe mentions in her memoir that there was a leak somehow and he had to be brought to Denmark right away so there could be an official announcement.