Norodom Sihamoni, King of Cambodia, who is personally committed to a monastic way of life.
Pope Francis, being an ordained priest of the Catholic Church, is sworn to celibacy.
Joan Enric Vives, Co-Prince of Andorra, being an ordained priest of the Catholic Church, is sworn to celibacy.
Sovereigns who are divorced
Mohammed VI, King of Morocco. He and his wife Salma divorced in 2018.
Charles III, King of The United Kingon of Great Britain and Northen Ireland. He and his wife Diana divorced in 1996.
Sovereigns with a deceased consort
Hans Adam II, Sovereign Prince of Liechtenstein. He married Marie Kinsky of Wchinitz and Tettau. She died on 21 August 2021 at Cantonal Hospital in Grabs.