Mangkubumi, Crown Princess of Yogyakarta (full name: Her Royal Highness Princess Mangkubumi Hamemayu Hayuning Bawana Langgeng ing Mataram; Javanese: ꦩꦁꦑꦸꦨꦸꦩꦶ, Gusti Kanjeng Ratu Mangkubumi, born as Gusti Raden Ajeng Nurmalitasari on 24 February 1972, later known as Gusti Kanjeng Ratu Pembayun) is the first child and daughter of Sultan Hamengkubuwono X of Yogyakarta and his consort, Queen Hemas.

On June 28, 2023, Princess Mangkubumi received the honorable doctoral degree in Human Letters from Northern Illinois University.

[4] The wedding ceremonies started with the ritual called "Nyantri",[5] whereby the bridegroom Prince Wironegoro enter the palace on May 27, 2002.

As the oldest princess, Mangkubumi has to go around the palace wall on the royal carriage Kanjeng Kyai Jongwiyat.

Her firstborn "Artie" has recently gone through rites of passage tetesan on 22 December 2013[8] and tarapan [9] both rituals signify her daughter has reached the age of majority.

[13] Princess Mangkubumi has served as the chairwoman of Karangtaruna in Special Region of Yogyakarta for 10 years (2002–2012) where she directed to organization to harness leadership and improved livelihood of youth.

In collaboration with UNFPA and national agency for family planning she is also active on promoting youth reproduction health and gender equality.

In the interview that took place right after her official appointment, she mentioned her intention to promote Scout Movement in Yogyakarta and widen their outreach.

[18] At the beginning of 2012, Princess Mangkubumi present a proposal to establish Yogyakarta as the first "cyber province".

In her inaugural speech she mentioned her vision to advance the economy of yogyakarta by promoting local industry and reducing dependency to foreign support.

[25] The title Mangkubumi was formerly reserved for senior male princes groomed for the throne, including the reigning Sultan.