Prince Charles, Count of Flanders

He died on 1 June 1983 in Ostend, predeceasing his elder brother by a few months, and was buried at the Church of Our Lady of Laeken in Brussels.

In 1950, Charles's regency ended when Leopold III returned to Belgium and resumed his monarchical duties, following a plebiscite. Charles retired from public life, taking up residence in Ostend and becoming involved in artistic pursuits. Having taken up painting, he signed his works: "Karel van Vlaanderen" (Charles of Flanders).

Furthermore, women obtained the right to vote in parliamentary elections in 1948.

Prince Charles was appointed Regent of Belgium when the German occupation of his country ended in 1944. The role of his elder brother King Leopold III during the Second World War, as well as Leopold's marriage to Mary Lilian Baels, was questioned and he became a controversial monarch.

Charles had a natural daughter, Isabelle Wybo, born in 1938 as the result of a relationship with Jacqueline Wehrli, the daughter of a Brussels baker. Her existence was largely unknown until a biography of the prince was published in 2003. Wybo made an official appearance with her first cousin-once removed, Prince Laurent in 2012.

He was the 377th knight Grand Cross of the Order of the Tower and Sword.

It is reported that Prince Charles, Count of Flanders, married Louise Marie Jacqueline Peyrebrune (16 February 1921, in La Réole – September 2014, in Saint-Hilaire-de-la-Noaille), formerly Mrs. Georges Schaack, daughter of Alfred Peyrebrune and Marie Madeleine Triaut, in a religious ceremony in Paris on 14 September 1977. This marriage has been mentioned in every edition of the revived Almanach de Gotha. However L'Allemagne Dynastique doubts this assertion, affirming instead that not only was there no civil marriage but that there was also no religious one (which could not take place before a civil marriage, according to French Law). No such religious marriage is registered in the Parish registers of Saint-Pierre-de-Montrouge, but a mere private blessing eight months after the death of her husband given by Father Marcelino Carrera was registered: "The private blessing uniting before God Charles Theodore Count of Flanders and Louise Marie Jacqueline Peyrebrune was given at Saint Peter's at the altar of the Sacred Heart on 14 September 1977. The mutual consent was received by your humble brother in Christ (Fr. Carrera) in the presence of Father Keller and witnesses (Comtesse Annie de Bergeret and Mme. Marie Jeannette Aurelie Menahes). The statement is also signed by the participants and witnesses." This was confirmed by private correspondence of Jacqueline Peyrebrune. She published her memoirs in two books: Love in Shadow - The Secret Garden of Prince Charles of Belgium (Editions Tarmeye, 1991) and Carnets Intimes (Editions Tarmeye, 1993).

Born in Brussels, Charles was the second son of King Albert I of Belgium and Duchess Elisabeth in Bavaria. During World War I, the children of the Belgian royal family were sent to United Kingdom while King Albert I remained in Belgium behind the Yser Front. In 1915 Prince Charles began attending Wixenford School in Wokingham, Berkshire, and in 1917 proceeded to the Royal Naval College, Osborne, and two years later to Dartmouth. In 1926 he received the rank of sub-lieutenant in the British Royal Navy. Later that year he returned to Belgium and began attending the Royal Military School of Brussels.

Prince Charles, Count of Flanders (Dutch: Karel, German: Karl; 10 October 1903 – 1 June 1983) was a member of the Belgian royal family who served as regent of Belgium from 1944 until 1950, while a judicial commission investigated his elder brother, King Leopold III of Belgium, as to whether he betrayed the Allies of World War II by an allegedly premature surrender in 1940 and collaboration with the Nazis during the occupation of Belgium. Charles' regency ended when Leopold was allowed to return to Belgium. Shortly after returning and resuming his monarchical duties, Leopold abdicated in favour of his son, Baudouin.