of anal cancer. I read he was of alternative life style.He briefly had a wife from 1976-79

https://medium.com/@sancass/two-happy-royals-b9298406a0fb

https://www.dailymail.co.uk/news/article-7875261/Sultan-Oman-Qaboos-bin-Said-Al-Said-dies-aged-79-half-century-power.html

https://en.wikipedia.org/wiki/Qaboos_bin_Said_al_Said