Sultan Ismail Petra died at the Raja Perempuan Zainab II Hospital in Kota Bharu on 28 September 2019, aged 69, after 10 years of suffering from a massive stroke and was buried at the Kelantan Royal Mausoleum.

A year later, on 30 March 1980, he was crowned as the Sultan of Kelantan in the throne room of the Istana Balai Besar in Kota Bharu.

The royal couple had four children: Sultan Ismail Petra also had a second wife, Cik Puan Elia Suhana Ahmad, whom he married on 23 December 2007.

[1] [2] It was reported that Sultan Ismail Petra, filed an application for verification of his divorce from his second wife, at the Syariah High Court on 9 March 2010.

However, the Syariah Court of Appeal rejected an application to validate the divorce pronouncement allegedly uttered by Sultan Ismail Petra against his second wife on 30 March 2011.

When Sultan Ismail Petra remained ill, the panel decided that he was not capable of ruling the state and it was decided that his eldest son, Crown Prince Tengku Muhammad Faris Petra be crowned the new sultan on 13 September 2010 by order of the Kelantan Succession Council.

Sultan Ismail Petra died of heart failure on 28 September 2019 at 8:11 am at the Royal Ward of Raja Perempuan Zainab II Hospital, Kota Bharu, aged 69.

He was buried near the grave of his father, Sultan Yahya Petra at the Langgar Royal Mausoleum in Kota Bharu, Kelantan.