She is married to
Prince Notonegoro, an executive in the
United Nations Development Programme Indonesia and a professional in the
United Nations, New York, United States. Hayu's marriage to
Prince Notonegoro received heavy public attention since the engagement was announced on 20 June 2013. The couple had been dating for 10 years and knew each other from a young age as their respective mothers are friends. Hayu's mother
Ratu Hemas requested Noto to help her daughter when she started attending college in the US. Notonegoro, who was pursuing graduate studies in the US at that time, met the princess in New York and the romance began there. Since Hayu was the last of her parents' children to get married, the wedding was arranged as a cultural event for the people in Yogyakarta. While the previous royal weddings only involved a parade of five royal horse carriages, Hayu's wedding had twelve horse carriages to transport all the members of the
Royal Family of Yogyakarta. The wedding also managed to boost tourism in
Yogyakarta which is a touristic destination in the first place. On 22 October 2013, Princess Hayu was officially married to
Prince Notonegoro. The royal wedding in Yogyakarta Palace was conducted over three consecutive days. Thousands of guests attended the royal wedding including the
President of the Republic of Indonesia Mr.
Susilo Bambang Yudhoyono. Consistent with the Muslim tradition, the wedding solemnisation ritual
Ijab qabul was conducted by the Sultan himself without the presence of the bride. The wedding vow was conducted in archaic Javanese language, which translated as: ''"I,
Prince Notonegoro, today carry out Your Majesty's command to marry your daughter Gusti Kanjeng Ratu Hayu with the Holy Quran and a set of prayer outfits as a dowry."'' At the culmination of the wedding Princess Hayu and
Prince Notonegoro were paraded in the city. Thousands of people turned out to witness this parade. On August 18, 2019, Princess Hayu gave birth to their first child, a baby boy named Raden Mas Manteyyo Kuncoro Suryonegoro. ==Professional experience==