Tengku Putih, daughter to Tengku Puteh ibni al-Marhum of Patani. He died at Istana Balai Besar, Kota Bharu, 11 May 1890 and buried in the Royal Cemetery, Kampung Langgar. 1890–1899: Sultan Mansur ibni Sultan Ahmad ibni al-Marhum Sultan Ahmad Tengah. Born 1870, he was son to Sultan Ahmad. Appointed as heir presumptive (Raja Muda) on September 1887. Then he was installed as heir apparent and regent for his brother (as Raja Kelantan) on September 1889. Succeeded on his death, as Yang di-Pertuan in 1890 and granted the title of Phra Visit Bakdiya in 1897. Proclaimed as Paduka Sri Sultan in 1898. Married Engku Nik binti al-Marham Raja Patani (whom died after 1897). He died at Istana Johar, Kota Bharu on 17 June 1899 and buried at the Royal Cemetery, Kampung Langgar. 20th century 1899–1920: Sultan Muhammad IV Ibni Sultan Muhammad III. Born in Kota Bharu on 23 May 1870, son of Sultan Muhammad III and his wife Tengku Sofia. He was granted the title of Tengku Sri Indra on 23 September 1890. Appointed as heir presumptive(as Raja Muda) on 25 July 1898 and then granted the title of Phaya Bpakdi Sri Sultan Muhammad Ratna Nuchit Siti Santun Wiwangsa Pia Kelantan by the King of Siam. Succeeded on the death of his childless uncle on 17 June 1899. Installed as Raja Kelantan and Yang di-Pertuan on 9 February 1900. Kelantan was transferred to British Protection on 19 July 1909. Crowned as Paduka Sri Baginda Sultan Muhammad IV on 22 June 1911. Altered the name of the state to Negeri Kelantan Dar ul-Naim, July 1916. Founded the Darjah Kerabat Yang Amat di-Hormatai (Royal Family Order) and the Paduka Mahkota Kelantan al-Muhammad (the Order of the Crown of Kelantan of Muhammad) on 1916. Married his first wife in 1888, Nik Wan Zainab binti Nik Wan Muhammad Amin (1877–1928) whom was crowned as sultanah on 15 February 1916. He died at the Istana, Kota Bharu, 23 December 1920 and buried at the Royal Cemetery, Kampung Langgar. 1920–1944: Sultan Ismail ibni Almarhum Sultan Muhammad IV. Born in Kota Bharu on 20 August 1880, eldest son of Sultan Muhammad IV. Granted the title of Tengku Sri Jaya Raja and prom. to Tengku Sri Indra Mahkota 11 March 1901. Granted the title of Phra Rattasadana Adipati Putra by the King of Siam 1901. Appointed as heir apparent and formally invested with the title of Raja Kelantan on