Somehow I suspect that the lady we are trying to identify does not match with the photo of Princess Pauline of Bentheim-Steinfurt, but I could be very much mistaken.
After I re-read the list of who was in Queen Wilhelmina's procession, I wondered if Princess Charlotte of Prussia might be the lady in question. I suspect that her daughter, Feodora, may not have been present because of her periodic health problems.
When I saw this photo of Princess Charlotte, I wondered if this is the tiara which can be seen at Queen Wilhelmina's wedding??