Princess Mako of Japan had married Kei Komuro. As Kei is considered a commoner, Mako has now lost her royal status due to the Imperial Household law. She is the current Emperor’s niece but will be the sister of the next Emperor (despite the Emperor already having a daughter, as females are not allowed to inherit the throne). She has also turned down an offer of money that is usually paid to royal females on their departure from the royal family to help them in their new life.
It has been reported that Princess Mako has been suffering from mental health problems and PTSD due to the negative attention she has received from the press over her engagement to Kei (whose mother is involved in a financial dispute scandal).
What a sad story and it sounds very similar to issues going on in the British royal family.