What was controversial about Olav and Märtha or Maud and Carl?
Were Olav and Martha and before them Maud and Carl controversial because the couples were first cousins? I didn't think it was a big deal then. There were first cousin marriages in European royal families after those two as well.
First cousins and because Olav was poor. I think it was Grand Duchess Augusta of Mecklenburg-Strelitz who wrote her niece, Queen Mary, how shocked she was that the couple wouldn't even be given a house of their own.
Olav and Märtha – not just first cousins; but
his parents were first cousins and
her parents were first cousins once removed. In Harald's immortal words "Haven't you noticed everyone looks a little funny around here...?" I think the NRF was trying not to end up like the Spanish Habsburgs; in any case they did have to go see the 1920's equivalent of a geneticist, who said they would probably be fine.
Olav wasn't poor. Both his parents were from very wealthy families and had inherited substantially; Queen Maud's money is still considered to be the basis of the family's fortune. They were just good at
convincing people they didn't have very much money for PR. In any case, they certainly had more than Carl and Ingeborg, so the objection wouldn't have come from that source.
The idea was for the couple to live at Oscarshall but that was apparently uncomfortable and unrealistic and Olav said if that was the only option he'd take an apartment in Oslo instead. In any case, they
did end up being given a home...
Aunt Augusta just liked to complain about the NRF because the elected monarch thing offended her old-school sensibilities too much, but she died during the First World War, so it couldn't have been her in this case. (Although people were shocked when his
parents got married, and were not given a house, and ended up living in a "flat" in Copenhagen...)
Which leads me to...
Maud and Carl - their engagement is so sudden that there's no real definitive story or reason for it. One theory is they had been having feelings for each other/a bit of a relationship for a few years that wasn't really acknowledged.
His mother Crown Princess Louise apparently
really wanted her prize child to marry Queen Wilhelmina of the Netherlands (and not his relative-nobody British cousin and thus stay a nobody-Danish naval officer). As Aunt Lovisa had all of Carl's money, she did get to have a say in things... don't ask me how she was convinced, but
you can see how happy she was(n't) at the wedding... (having a moment in the Pearl Poire tiara next to Queen Victoria). In my humble opinion, the curse stems from her... since without this marriage, there wouldn't be an NRF to begin with, of course.