What does the Royal Princess of Thailand mean?

The Royal Princess of Thailand is a noble title of the royal family. According to relevant information, princess royal is a noble title of the royal family, and it needs the seal of the monarch to determine the title. Now princess royal of the British royal family is Anne, and princess royal of the Thai royal family is Pachala. It turns out that princess royal, Thailand is Ubuntu Ratchathani of King Bhumibol. She is the first 1 child of Empress Dowager sirikit and Bhumibol. She wanted to make good use of the favorable weather, geographical location and human relations, but she gave up the title of princess royal for love 49 years ago, was deprived of her royal status and became a civilian.